Fix dxil-remove-dead-blocks removing switch with multiple same successor (#6610)
Given a switch with a constant condition and all cases the same (branching to the same successor), dxil-remove-dead-blocks would incorrectly remove the switch when replacing it with a branch, by forgetting to remove the N-1 incoming values to the PHIs in the successor block.
This commit is contained in:
Antonio Maiorano
GitHub
Родитель
811ef49333
Коммит
cf566e1f3f
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@ -35,6 +35,7 @@
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using namespace llvm;
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using namespace hlsl;
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// Removes BB from PHI nodes in SuccBB, deleting the PHI nodes if empty.
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static void RemoveIncomingValueFrom(BasicBlock *SuccBB, BasicBlock *BB) {
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for (auto inst_it = SuccBB->begin(); inst_it != SuccBB->end();) {
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Instruction *I = &*(inst_it++);
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@ -105,6 +106,8 @@ bool DeadBlockDeleter::Run(Function &F, DxilValueCache *DVC) {
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} else if (SwitchInst *Switch = dyn_cast<SwitchInst>(BB->getTerminator())) {
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Value *Cond = Switch->getCondition();
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BasicBlock *Succ = nullptr;
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// If the condition to Switch is constant, replace Switch with a branch
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// to the current case successor.
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if (ConstantInt *ConstCond = DVC->GetConstInt(Cond)) {
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Succ = hlsl::dxilutil::GetSwitchSuccessorForCond(Switch, ConstCond);
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}
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@ -112,16 +115,32 @@ bool DeadBlockDeleter::Run(Function &F, DxilValueCache *DVC) {
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if (Succ) {
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Add(Succ);
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// Create branch from BB to Succ that will replace Switch.
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// This adds BB to preds of Succ.
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BranchInst *NewBr = BranchInst::Create(Succ, BB);
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hlsl::DxilMDHelper::CopyMetadata(*NewBr, *Switch);
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// For any successors we're not going to, remove incoming block BB from
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// PHI nodes in those successors.
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unsigned numSucc = 0;
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for (unsigned i = 0; i < Switch->getNumSuccessors(); i++) {
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BasicBlock *NotSucc = Switch->getSuccessor(i);
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if (NotSucc != Succ) {
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if (NotSucc != Succ)
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RemoveIncomingValueFrom(NotSucc, BB);
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}
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else
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++numSucc;
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}
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// We're replacing Switch with a single unconditional branch. If Switch
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// has N cases with the same Succ, we need to remove N-1 incoming values
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// of BB from the PHI nodes in Succ. This ensures that the preds of Succ
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// match the ones in its PHIs.
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for (unsigned i = 1; i < numSucc; i++) {
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RemoveIncomingValueFrom(Succ, BB);
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}
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// Finally, erase Switch, which will remove BB as pred from all
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// successors.
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Switch->eraseFromParent();
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Switch = nullptr;
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Changed = true;
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@ -0,0 +1,68 @@
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// Test switch with multiple same successors
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// RUN: %dxc -T ps_6_6 %s | FileCheck %s
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// This test used to fail with validation errors:
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//
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// error: validation errors
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// error: Module bitcode is invalid.
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// error: PHINode should have one entry for each predecessor of its parent basic block!
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// %22 = phi i32 [ 1, %20 ], [ 1, %20 ], [ 1, %20 ], [ 1, %20 ], [ %11, %13 ]
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// PHINode should have one entry for each predecessor of its parent basic block!
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// %28 = phi i32 [ 1, %26 ], [ 1, %26 ], [ 1, %26 ], [ 1, %26 ], [ %22, %24 ]
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// PHINode should have one entry for each predecessor of its parent basic block!
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// %34 = phi i32 [ 1, %32 ], [ 1, %32 ], [ 1, %32 ], [ 1, %32 ], [ %28, %30 ]
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// PHINode should have one entry for each predecessor of its parent basic block!
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// %47 = phi i32 [ 1, %45 ], [ 1, %45 ], [ 1, %45 ], [ 1, %45 ], [ %41, %43 ]
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//
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// This was fixed in dxil-remove-dead-blocks. See switch-with-multiple-same-successor.ll
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// for the pass-specific checks. Here, we just want to make sure dxc compiles this without error.
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// CHECK: @main
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ByteAddressBuffer g_buff : register(t0);
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struct retval {
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float4 value : SV_Target0;
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};
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retval main() {
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float4 g = asfloat(g_buff.Load4(0u));
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bool do_discard = false;
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for (int i = 0; i < 10; ++i) {
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if (g.x != 0.0f)
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continue;
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// Switch with the same successor in all cases
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switch(i) {
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case 1: {
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g.x = g.x;
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break;
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}
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case 2: {
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g.x = g.x;
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break;
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}
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case 3: {
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g.x = g.x;
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break;
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}
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// Skip 'case 4' to avoid case range combining
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case 5: {
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g.x = g.x;
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break;
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}
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}
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if (i == 6) {
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break;
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}
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g.x = atan2(1.0f, g.x);
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do_discard = true;
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}
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if (do_discard) {
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discard;
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}
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return (retval)0;
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}
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@ -0,0 +1,369 @@
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; RUN: %dxopt %s -hlsl-passes-resume -dxil-remove-dead-blocks -S | FileCheck %s
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; Validate that a switch with a constant condition and multiple of the same successor
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; is correctly removed, ensuring that PHIs in the successor are properly updated.
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; For instance, in:
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;
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;
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; if.end.1: ; preds = %for.inc
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; switch i32 1, label %sw.epilog.1 [
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; i32 1, label %dx.struct_exit.new_exiting.1
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; i32 2, label %dx.struct_exit.new_exiting.1
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; i32 3, label %dx.struct_exit.new_exiting.1
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; i32 5, label %dx.struct_exit.new_exiting.1
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; ], !dbg !31 ; line:23 col:5
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;
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; sw.epilog.1: ; preds = %if.end.1
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; br label %dx.struct_exit.new_exiting.1
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;
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; dx.struct_exit.new_exiting.1: ; preds = %sw.epilog.1, %if.end.1, %if.end.1, %if.end.1, %if.end.1, %for.inc
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; %dx.struct_exit.prop.1 = phi i32 [ %do_discard.2, %sw.epilog.1 ], [ 0, %if.end.1 ], [ 0, %if.end.1 ], [ 0, %if.end.1 ], [ 0, %if.end.1 ], [ 0, %for.inc ]
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; %do_discard.2.1 = phi i32 [ 1, %sw.epilog.1 ], [ 1, %if.end.1 ], [ 1, %if.end.1 ], [ 1, %if.end.1 ], [ 1, %if.end.1 ], [ %do_discard.2, %for.inc ]
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; %g.2.i0.1 = phi float [ 0x3FF921FB60000000, %sw.epilog.1 ], [ 0x3FF921FB60000000, %if.end.1 ], [ 0x3FF921FB60000000, %if.end.1 ], [ 0x3FF921FB60000000, %if.end.1 ], [ 0x3FF921FB60000000, %if.end.1 ], [ %g.2.i0, %for.inc ]
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; br i1 false, label %cleanup, label %for.inc.1
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;
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;
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; After dxil-remove-dead-blocks, the multiple `%if.end.1` in preds and in the two phi instructions should be removed,
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; and only one instance should be left.
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; CHECK: if.end.1: ; preds = %for.inc
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; CHECK-NEXT: br label %dx.struct_exit.new_exiting.1
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; CHECK: dx.struct_exit.new_exiting.1: ; preds = %if.end.1, %for.inc
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; CHECK-NEXT: %do_discard.2.1 = phi i32 [ 1, %if.end.1 ], [ %do_discard.2, %for.inc ]
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; CHECK-NEXT: %g.2.i0.1 = phi float [ 0x3FF921FB60000000, %if.end.1 ], [ %g.2.i0, %for.inc ]
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;
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; Output signature:
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;
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; Name Index InterpMode DynIdx
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; -------------------- ----- ---------------------- ------
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; SV_Target 0
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;
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; Buffer Definitions:
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;
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;
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; Resource Bindings:
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;
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; Name Type Format Dim ID HLSL Bind Count
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; ------------------------------ ---------- ------- ----------- ------- -------------- ------
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; g_buff texture byte r/o T0 t0 1
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;
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target datalayout = "e-m:e-p:32:32-i1:32-i8:32-i16:32-i32:32-i64:64-f16:32-f32:32-f64:64-n8:16:32:64"
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target triple = "dxil-ms-dx"
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%struct.ByteAddressBuffer = type { i32 }
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%dx.types.Handle = type { i8* }
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%dx.types.ResourceProperties = type { i32, i32 }
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%dx.types.ResRet.i32 = type { i32, i32, i32, i32, i32 }
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%struct.retval = type { <4 x float> }
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@"\01?g_buff@@3UByteAddressBuffer@@A" = external global %struct.ByteAddressBuffer, align 4
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@llvm.used = appending global [1 x i8*] [i8* bitcast (%struct.ByteAddressBuffer* @"\01?g_buff@@3UByteAddressBuffer@@A" to i8*)], section "llvm.metadata"
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; Function Attrs: nounwind
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define void @main(<4 x float>* noalias nocapture readnone) #0 {
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for.body.lr.ph:
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%1 = load %struct.ByteAddressBuffer, %struct.ByteAddressBuffer* @"\01?g_buff@@3UByteAddressBuffer@@A", align 4, !dbg !23 ; line:15 col:22
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%2 = call %dx.types.Handle @dx.op.createHandleForLib.struct.ByteAddressBuffer(i32 160, %struct.ByteAddressBuffer %1), !dbg !23 ; line:15 col:22 ; CreateHandleForLib(Resource)
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%3 = call %dx.types.Handle @dx.op.annotateHandle(i32 216, %dx.types.Handle %2, %dx.types.ResourceProperties { i32 11, i32 0 }), !dbg !23 ; line:15 col:22 ; AnnotateHandle(res,props) resource: ByteAddressBuffer
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%RawBufferLoad = call %dx.types.ResRet.i32 @dx.op.rawBufferLoad.i32(i32 139, %dx.types.Handle %3, i32 0, i32 undef, i8 15, i32 4), !dbg !23 ; line:15 col:22 ; RawBufferLoad(srv,index,elementOffset,mask,alignment)
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%4 = extractvalue %dx.types.ResRet.i32 %RawBufferLoad, 0, !dbg !23 ; line:15 col:22
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%.i0 = bitcast i32 %4 to float, !dbg !27 ; line:15 col:14
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br label %for.body, !dbg !28 ; line:18 col:3
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for.body: ; preds = %for.body.lr.ph
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%cmp3 = fcmp fast une float %.i0, 0.000000e+00, !dbg !29 ; line:19 col:13
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br i1 %cmp3, label %dx.struct_exit.new_exiting, label %if.end, !dbg !30 ; line:19 col:9
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if.end: ; preds = %for.body
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switch i32 0, label %sw.epilog [
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i32 1, label %dx.struct_exit.new_exiting
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i32 2, label %dx.struct_exit.new_exiting
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i32 3, label %dx.struct_exit.new_exiting
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i32 5, label %dx.struct_exit.new_exiting
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], !dbg !31 ; line:23 col:5
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sw.epilog: ; preds = %if.end
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br label %dx.struct_exit.new_exiting
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dx.struct_exit.new_exiting: ; preds = %sw.epilog, %if.end, %if.end, %if.end, %if.end, %for.body
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%do_discard.2 = phi i32 [ 0, %for.body ], [ 1, %if.end ], [ 1, %if.end ], [ 1, %if.end ], [ 1, %if.end ], [ 1, %sw.epilog ]
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%g.2.i0 = phi float [ %.i0, %for.body ], [ 0x3FF921FB60000000, %if.end ], [ 0x3FF921FB60000000, %if.end ], [ 0x3FF921FB60000000, %if.end ], [ 0x3FF921FB60000000, %if.end ], [ 0x3FF921FB60000000, %sw.epilog ]
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br i1 false, label %cleanup, label %for.inc
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for.inc: ; preds = %dx.struct_exit.new_exiting
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%cmp3.1 = fcmp fast une float %g.2.i0, 0.000000e+00, !dbg !29 ; line:19 col:13
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br i1 %cmp3.1, label %dx.struct_exit.new_exiting.1, label %if.end.1, !dbg !30 ; line:19 col:9
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cleanup: ; preds = %for.inc.9, %dx.struct_exit.new_exiting.9, %dx.struct_exit.new_exiting.8, %dx.struct_exit.new_exiting.7, %dx.struct_exit.new_exiting.6, %dx.struct_exit.new_exiting.5, %dx.struct_exit.new_exiting.4, %dx.struct_exit.new_exiting.3, %dx.struct_exit.new_exiting.2, %dx.struct_exit.new_exiting.1, %dx.struct_exit.new_exiting
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%do_discard.3 = phi i32 [ 0, %dx.struct_exit.new_exiting ], [ %dx.struct_exit.prop.1, %dx.struct_exit.new_exiting.1 ], [ %dx.struct_exit.prop.2, %dx.struct_exit.new_exiting.2 ], [ %dx.struct_exit.prop.3, %dx.struct_exit.new_exiting.3 ], [ %dx.struct_exit.prop.4, %dx.struct_exit.new_exiting.4 ], [ %dx.struct_exit.prop.5, %dx.struct_exit.new_exiting.5 ], [ %dx.struct_exit.prop.6, %dx.struct_exit.new_exiting.6 ], [ %dx.struct_exit.prop.7, %dx.struct_exit.new_exiting.7 ], [ %dx.struct_exit.prop.8, %dx.struct_exit.new_exiting.8 ], [ %dx.struct_exit.prop.9, %dx.struct_exit.new_exiting.9 ], [ %do_discard.2.9, %for.inc.9 ]
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%tobool15 = icmp eq i32 %do_discard.3, 0, !dbg !32 ; line:49 col:7
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br i1 %tobool15, label %if.end.17, label %if.then.16, !dbg !32 ; line:49 col:7
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if.then.16: ; preds = %cleanup
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call void @dx.op.discard(i32 82, i1 true), !dbg !33 ; line:49 col:19 ; Discard(condition)
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br label %if.end.17, !dbg !34 ; line:51 col:3
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if.end.17: ; preds = %cleanup, %if.then.16
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call void @dx.op.storeOutput.f32(i32 5, i32 0, i32 0, i8 0, float 0.000000e+00), !dbg !35 ; line:53 col:18 ; StoreOutput(outputSigId,rowIndex,colIndex,value)
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call void @dx.op.storeOutput.f32(i32 5, i32 0, i32 0, i8 1, float 0.000000e+00), !dbg !35 ; line:53 col:18 ; StoreOutput(outputSigId,rowIndex,colIndex,value)
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call void @dx.op.storeOutput.f32(i32 5, i32 0, i32 0, i8 2, float 0.000000e+00), !dbg !35 ; line:53 col:18 ; StoreOutput(outputSigId,rowIndex,colIndex,value)
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call void @dx.op.storeOutput.f32(i32 5, i32 0, i32 0, i8 3, float 0.000000e+00), !dbg !35 ; line:53 col:18 ; StoreOutput(outputSigId,rowIndex,colIndex,value)
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ret void, !dbg !36 ; line:54 col:1
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if.end.1: ; preds = %for.inc
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switch i32 1, label %sw.epilog.1 [
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i32 1, label %dx.struct_exit.new_exiting.1
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i32 2, label %dx.struct_exit.new_exiting.1
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i32 3, label %dx.struct_exit.new_exiting.1
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i32 5, label %dx.struct_exit.new_exiting.1
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], !dbg !31 ; line:23 col:5
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sw.epilog.1: ; preds = %if.end.1
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br label %dx.struct_exit.new_exiting.1
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dx.struct_exit.new_exiting.1: ; preds = %sw.epilog.1, %if.end.1, %if.end.1, %if.end.1, %if.end.1, %for.inc
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%dx.struct_exit.prop.1 = phi i32 [ %do_discard.2, %sw.epilog.1 ], [ 0, %if.end.1 ], [ 0, %if.end.1 ], [ 0, %if.end.1 ], [ 0, %if.end.1 ], [ 0, %for.inc ]
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%do_discard.2.1 = phi i32 [ 1, %sw.epilog.1 ], [ 1, %if.end.1 ], [ 1, %if.end.1 ], [ 1, %if.end.1 ], [ 1, %if.end.1 ], [ %do_discard.2, %for.inc ]
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%g.2.i0.1 = phi float [ 0x3FF921FB60000000, %sw.epilog.1 ], [ 0x3FF921FB60000000, %if.end.1 ], [ 0x3FF921FB60000000, %if.end.1 ], [ 0x3FF921FB60000000, %if.end.1 ], [ 0x3FF921FB60000000, %if.end.1 ], [ %g.2.i0, %for.inc ]
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br i1 false, label %cleanup, label %for.inc.1
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for.inc.1: ; preds = %dx.struct_exit.new_exiting.1
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%cmp3.2 = fcmp fast une float %g.2.i0.1, 0.000000e+00, !dbg !29 ; line:19 col:13
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br i1 %cmp3.2, label %dx.struct_exit.new_exiting.2, label %if.end.2, !dbg !30 ; line:19 col:9
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if.end.2: ; preds = %for.inc.1
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switch i32 2, label %sw.epilog.2 [
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i32 1, label %dx.struct_exit.new_exiting.2
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i32 2, label %dx.struct_exit.new_exiting.2
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i32 3, label %dx.struct_exit.new_exiting.2
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i32 5, label %dx.struct_exit.new_exiting.2
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], !dbg !31 ; line:23 col:5
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sw.epilog.2: ; preds = %if.end.2
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br label %dx.struct_exit.new_exiting.2
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dx.struct_exit.new_exiting.2: ; preds = %sw.epilog.2, %if.end.2, %if.end.2, %if.end.2, %if.end.2, %for.inc.1
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%dx.struct_exit.prop.2 = phi i32 [ %do_discard.2.1, %sw.epilog.2 ], [ 0, %if.end.2 ], [ 0, %if.end.2 ], [ 0, %if.end.2 ], [ 0, %if.end.2 ], [ 0, %for.inc.1 ]
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%do_discard.2.2 = phi i32 [ 1, %sw.epilog.2 ], [ 1, %if.end.2 ], [ 1, %if.end.2 ], [ 1, %if.end.2 ], [ 1, %if.end.2 ], [ %do_discard.2.1, %for.inc.1 ]
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%g.2.i0.2 = phi float [ 0x3FF921FB60000000, %sw.epilog.2 ], [ 0x3FF921FB60000000, %if.end.2 ], [ 0x3FF921FB60000000, %if.end.2 ], [ 0x3FF921FB60000000, %if.end.2 ], [ 0x3FF921FB60000000, %if.end.2 ], [ %g.2.i0.1, %for.inc.1 ]
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br i1 false, label %cleanup, label %for.inc.2
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for.inc.2: ; preds = %dx.struct_exit.new_exiting.2
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%cmp3.3 = fcmp fast une float %g.2.i0.2, 0.000000e+00, !dbg !29 ; line:19 col:13
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br i1 %cmp3.3, label %dx.struct_exit.new_exiting.3, label %if.end.3, !dbg !30 ; line:19 col:9
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if.end.3: ; preds = %for.inc.2
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switch i32 3, label %sw.epilog.3 [
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i32 1, label %dx.struct_exit.new_exiting.3
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i32 2, label %dx.struct_exit.new_exiting.3
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i32 3, label %dx.struct_exit.new_exiting.3
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i32 5, label %dx.struct_exit.new_exiting.3
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], !dbg !31 ; line:23 col:5
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sw.epilog.3: ; preds = %if.end.3
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br label %dx.struct_exit.new_exiting.3
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dx.struct_exit.new_exiting.3: ; preds = %sw.epilog.3, %if.end.3, %if.end.3, %if.end.3, %if.end.3, %for.inc.2
|
||||
%dx.struct_exit.prop.3 = phi i32 [ %do_discard.2.2, %sw.epilog.3 ], [ 0, %if.end.3 ], [ 0, %if.end.3 ], [ 0, %if.end.3 ], [ 0, %if.end.3 ], [ 0, %for.inc.2 ]
|
||||
%do_discard.2.3 = phi i32 [ 1, %sw.epilog.3 ], [ 1, %if.end.3 ], [ 1, %if.end.3 ], [ 1, %if.end.3 ], [ 1, %if.end.3 ], [ %do_discard.2.2, %for.inc.2 ]
|
||||
%g.2.i0.3 = phi float [ 0x3FF921FB60000000, %sw.epilog.3 ], [ 0x3FF921FB60000000, %if.end.3 ], [ 0x3FF921FB60000000, %if.end.3 ], [ 0x3FF921FB60000000, %if.end.3 ], [ 0x3FF921FB60000000, %if.end.3 ], [ %g.2.i0.2, %for.inc.2 ]
|
||||
br i1 false, label %cleanup, label %for.inc.3
|
||||
|
||||
for.inc.3: ; preds = %dx.struct_exit.new_exiting.3
|
||||
%cmp3.4 = fcmp fast une float %g.2.i0.3, 0.000000e+00, !dbg !29 ; line:19 col:13
|
||||
br i1 %cmp3.4, label %dx.struct_exit.new_exiting.4, label %if.end.4, !dbg !30 ; line:19 col:9
|
||||
|
||||
if.end.4: ; preds = %for.inc.3
|
||||
switch i32 4, label %sw.epilog.4 [
|
||||
i32 1, label %dx.struct_exit.new_exiting.4
|
||||
i32 2, label %dx.struct_exit.new_exiting.4
|
||||
i32 3, label %dx.struct_exit.new_exiting.4
|
||||
i32 5, label %dx.struct_exit.new_exiting.4
|
||||
], !dbg !31 ; line:23 col:5
|
||||
|
||||
sw.epilog.4: ; preds = %if.end.4
|
||||
br label %dx.struct_exit.new_exiting.4
|
||||
|
||||
dx.struct_exit.new_exiting.4: ; preds = %sw.epilog.4, %if.end.4, %if.end.4, %if.end.4, %if.end.4, %for.inc.3
|
||||
%dx.struct_exit.prop.4 = phi i32 [ %do_discard.2.3, %sw.epilog.4 ], [ 0, %if.end.4 ], [ 0, %if.end.4 ], [ 0, %if.end.4 ], [ 0, %if.end.4 ], [ 0, %for.inc.3 ]
|
||||
%do_discard.2.4 = phi i32 [ 1, %sw.epilog.4 ], [ 1, %if.end.4 ], [ 1, %if.end.4 ], [ 1, %if.end.4 ], [ 1, %if.end.4 ], [ %do_discard.2.3, %for.inc.3 ]
|
||||
%g.2.i0.4 = phi float [ 0x3FF921FB60000000, %sw.epilog.4 ], [ 0x3FF921FB60000000, %if.end.4 ], [ 0x3FF921FB60000000, %if.end.4 ], [ 0x3FF921FB60000000, %if.end.4 ], [ 0x3FF921FB60000000, %if.end.4 ], [ %g.2.i0.3, %for.inc.3 ]
|
||||
br i1 false, label %cleanup, label %for.inc.4
|
||||
|
||||
for.inc.4: ; preds = %dx.struct_exit.new_exiting.4
|
||||
%cmp3.5 = fcmp fast une float %g.2.i0.4, 0.000000e+00, !dbg !29 ; line:19 col:13
|
||||
br i1 %cmp3.5, label %dx.struct_exit.new_exiting.5, label %if.end.5, !dbg !30 ; line:19 col:9
|
||||
|
||||
if.end.5: ; preds = %for.inc.4
|
||||
switch i32 5, label %sw.epilog.5 [
|
||||
i32 1, label %dx.struct_exit.new_exiting.5
|
||||
i32 2, label %dx.struct_exit.new_exiting.5
|
||||
i32 3, label %dx.struct_exit.new_exiting.5
|
||||
i32 5, label %dx.struct_exit.new_exiting.5
|
||||
], !dbg !31 ; line:23 col:5
|
||||
|
||||
sw.epilog.5: ; preds = %if.end.5
|
||||
br label %dx.struct_exit.new_exiting.5
|
||||
|
||||
dx.struct_exit.new_exiting.5: ; preds = %sw.epilog.5, %if.end.5, %if.end.5, %if.end.5, %if.end.5, %for.inc.4
|
||||
%dx.struct_exit.prop.5 = phi i32 [ %do_discard.2.4, %sw.epilog.5 ], [ 0, %if.end.5 ], [ 0, %if.end.5 ], [ 0, %if.end.5 ], [ 0, %if.end.5 ], [ 0, %for.inc.4 ]
|
||||
%do_discard.2.5 = phi i32 [ 1, %sw.epilog.5 ], [ 1, %if.end.5 ], [ 1, %if.end.5 ], [ 1, %if.end.5 ], [ 1, %if.end.5 ], [ %do_discard.2.4, %for.inc.4 ]
|
||||
%g.2.i0.5 = phi float [ 0x3FF921FB60000000, %sw.epilog.5 ], [ 0x3FF921FB60000000, %if.end.5 ], [ 0x3FF921FB60000000, %if.end.5 ], [ 0x3FF921FB60000000, %if.end.5 ], [ 0x3FF921FB60000000, %if.end.5 ], [ %g.2.i0.4, %for.inc.4 ]
|
||||
br i1 false, label %cleanup, label %for.inc.5
|
||||
|
||||
for.inc.5: ; preds = %dx.struct_exit.new_exiting.5
|
||||
%cmp3.6 = fcmp fast une float %g.2.i0.5, 0.000000e+00, !dbg !29 ; line:19 col:13
|
||||
br i1 %cmp3.6, label %dx.struct_exit.new_exiting.6, label %if.end.6, !dbg !30 ; line:19 col:9
|
||||
|
||||
if.end.6: ; preds = %for.inc.5
|
||||
switch i32 6, label %sw.epilog.6 [
|
||||
i32 1, label %dx.struct_exit.new_exiting.6
|
||||
i32 2, label %dx.struct_exit.new_exiting.6
|
||||
i32 3, label %dx.struct_exit.new_exiting.6
|
||||
i32 5, label %dx.struct_exit.new_exiting.6
|
||||
], !dbg !31 ; line:23 col:5
|
||||
|
||||
sw.epilog.6: ; preds = %if.end.6
|
||||
br label %dx.struct_exit.new_exiting.6
|
||||
|
||||
dx.struct_exit.new_exiting.6: ; preds = %sw.epilog.6, %if.end.6, %if.end.6, %if.end.6, %if.end.6, %for.inc.5
|
||||
%dx.struct_exit.prop23.6 = phi i1 [ true, %sw.epilog.6 ], [ false, %if.end.6 ], [ false, %if.end.6 ], [ false, %if.end.6 ], [ false, %if.end.6 ], [ false, %for.inc.5 ]
|
||||
%dx.struct_exit.prop.6 = phi i32 [ %do_discard.2.5, %sw.epilog.6 ], [ 0, %if.end.6 ], [ 0, %if.end.6 ], [ 0, %if.end.6 ], [ 0, %if.end.6 ], [ 0, %for.inc.5 ]
|
||||
%do_discard.2.6 = phi i32 [ 1, %sw.epilog.6 ], [ 1, %if.end.6 ], [ 1, %if.end.6 ], [ 1, %if.end.6 ], [ 1, %if.end.6 ], [ %do_discard.2.5, %for.inc.5 ]
|
||||
%g.2.i0.6 = phi float [ 0x3FF921FB60000000, %sw.epilog.6 ], [ 0x3FF921FB60000000, %if.end.6 ], [ 0x3FF921FB60000000, %if.end.6 ], [ 0x3FF921FB60000000, %if.end.6 ], [ 0x3FF921FB60000000, %if.end.6 ], [ %g.2.i0.5, %for.inc.5 ]
|
||||
br i1 %dx.struct_exit.prop23.6, label %cleanup, label %for.inc.6
|
||||
|
||||
for.inc.6: ; preds = %dx.struct_exit.new_exiting.6
|
||||
%cmp3.7 = fcmp fast une float %g.2.i0.6, 0.000000e+00, !dbg !29 ; line:19 col:13
|
||||
br i1 %cmp3.7, label %dx.struct_exit.new_exiting.7, label %if.end.7, !dbg !30 ; line:19 col:9
|
||||
|
||||
if.end.7: ; preds = %for.inc.6
|
||||
switch i32 7, label %sw.epilog.7 [
|
||||
i32 1, label %dx.struct_exit.new_exiting.7
|
||||
i32 2, label %dx.struct_exit.new_exiting.7
|
||||
i32 3, label %dx.struct_exit.new_exiting.7
|
||||
i32 5, label %dx.struct_exit.new_exiting.7
|
||||
], !dbg !31 ; line:23 col:5
|
||||
|
||||
sw.epilog.7: ; preds = %if.end.7
|
||||
br label %dx.struct_exit.new_exiting.7
|
||||
|
||||
dx.struct_exit.new_exiting.7: ; preds = %sw.epilog.7, %if.end.7, %if.end.7, %if.end.7, %if.end.7, %for.inc.6
|
||||
%dx.struct_exit.prop.7 = phi i32 [ %do_discard.2.6, %sw.epilog.7 ], [ 0, %if.end.7 ], [ 0, %if.end.7 ], [ 0, %if.end.7 ], [ 0, %if.end.7 ], [ 0, %for.inc.6 ]
|
||||
%do_discard.2.7 = phi i32 [ 1, %sw.epilog.7 ], [ 1, %if.end.7 ], [ 1, %if.end.7 ], [ 1, %if.end.7 ], [ 1, %if.end.7 ], [ %do_discard.2.6, %for.inc.6 ]
|
||||
%g.2.i0.7 = phi float [ 0x3FF921FB60000000, %sw.epilog.7 ], [ 0x3FF921FB60000000, %if.end.7 ], [ 0x3FF921FB60000000, %if.end.7 ], [ 0x3FF921FB60000000, %if.end.7 ], [ 0x3FF921FB60000000, %if.end.7 ], [ %g.2.i0.6, %for.inc.6 ]
|
||||
br i1 false, label %cleanup, label %for.inc.7
|
||||
|
||||
for.inc.7: ; preds = %dx.struct_exit.new_exiting.7
|
||||
%cmp3.8 = fcmp fast une float %g.2.i0.7, 0.000000e+00, !dbg !29 ; line:19 col:13
|
||||
br i1 %cmp3.8, label %dx.struct_exit.new_exiting.8, label %if.end.8, !dbg !30 ; line:19 col:9
|
||||
|
||||
if.end.8: ; preds = %for.inc.7
|
||||
switch i32 8, label %sw.epilog.8 [
|
||||
i32 1, label %dx.struct_exit.new_exiting.8
|
||||
i32 2, label %dx.struct_exit.new_exiting.8
|
||||
i32 3, label %dx.struct_exit.new_exiting.8
|
||||
i32 5, label %dx.struct_exit.new_exiting.8
|
||||
], !dbg !31 ; line:23 col:5
|
||||
|
||||
sw.epilog.8: ; preds = %if.end.8
|
||||
br label %dx.struct_exit.new_exiting.8
|
||||
|
||||
dx.struct_exit.new_exiting.8: ; preds = %sw.epilog.8, %if.end.8, %if.end.8, %if.end.8, %if.end.8, %for.inc.7
|
||||
%dx.struct_exit.prop.8 = phi i32 [ %do_discard.2.7, %sw.epilog.8 ], [ 0, %if.end.8 ], [ 0, %if.end.8 ], [ 0, %if.end.8 ], [ 0, %if.end.8 ], [ 0, %for.inc.7 ]
|
||||
%do_discard.2.8 = phi i32 [ 1, %sw.epilog.8 ], [ 1, %if.end.8 ], [ 1, %if.end.8 ], [ 1, %if.end.8 ], [ 1, %if.end.8 ], [ %do_discard.2.7, %for.inc.7 ]
|
||||
%g.2.i0.8 = phi float [ 0x3FF921FB60000000, %sw.epilog.8 ], [ 0x3FF921FB60000000, %if.end.8 ], [ 0x3FF921FB60000000, %if.end.8 ], [ 0x3FF921FB60000000, %if.end.8 ], [ 0x3FF921FB60000000, %if.end.8 ], [ %g.2.i0.7, %for.inc.7 ]
|
||||
br i1 false, label %cleanup, label %for.inc.8
|
||||
|
||||
for.inc.8: ; preds = %dx.struct_exit.new_exiting.8
|
||||
%cmp3.9 = fcmp fast une float %g.2.i0.8, 0.000000e+00, !dbg !29 ; line:19 col:13
|
||||
br i1 %cmp3.9, label %dx.struct_exit.new_exiting.9, label %if.end.9, !dbg !30 ; line:19 col:9
|
||||
|
||||
if.end.9: ; preds = %for.inc.8
|
||||
switch i32 9, label %sw.epilog.9 [
|
||||
i32 1, label %dx.struct_exit.new_exiting.9
|
||||
i32 2, label %dx.struct_exit.new_exiting.9
|
||||
i32 3, label %dx.struct_exit.new_exiting.9
|
||||
i32 5, label %dx.struct_exit.new_exiting.9
|
||||
], !dbg !31 ; line:23 col:5
|
||||
|
||||
sw.epilog.9: ; preds = %if.end.9
|
||||
br label %dx.struct_exit.new_exiting.9
|
||||
|
||||
dx.struct_exit.new_exiting.9: ; preds = %sw.epilog.9, %if.end.9, %if.end.9, %if.end.9, %if.end.9, %for.inc.8
|
||||
%dx.struct_exit.prop.9 = phi i32 [ %do_discard.2.8, %sw.epilog.9 ], [ 0, %if.end.9 ], [ 0, %if.end.9 ], [ 0, %if.end.9 ], [ 0, %if.end.9 ], [ 0, %for.inc.8 ]
|
||||
%do_discard.2.9 = phi i32 [ 1, %sw.epilog.9 ], [ 1, %if.end.9 ], [ 1, %if.end.9 ], [ 1, %if.end.9 ], [ 1, %if.end.9 ], [ %do_discard.2.8, %for.inc.8 ]
|
||||
br i1 false, label %cleanup, label %for.inc.9
|
||||
|
||||
for.inc.9: ; preds = %dx.struct_exit.new_exiting.9
|
||||
br label %cleanup
|
||||
}
|
||||
|
||||
; Function Attrs: nounwind
|
||||
declare void @dx.op.storeOutput.f32(i32, i32, i32, i8, float) #0
|
||||
|
||||
; Function Attrs: nounwind
|
||||
declare void @dx.op.discard(i32, i1) #0
|
||||
|
||||
; Function Attrs: nounwind readonly
|
||||
declare %dx.types.ResRet.i32 @dx.op.rawBufferLoad.i32(i32, %dx.types.Handle, i32, i32, i8, i32) #1
|
||||
|
||||
; Function Attrs: nounwind readonly
|
||||
declare %dx.types.Handle @dx.op.createHandleForLib.struct.ByteAddressBuffer(i32, %struct.ByteAddressBuffer) #1
|
||||
|
||||
; Function Attrs: nounwind readnone
|
||||
declare %dx.types.Handle @dx.op.annotateHandle(i32, %dx.types.Handle, %dx.types.ResourceProperties) #2
|
||||
|
||||
attributes #0 = { nounwind }
|
||||
attributes #1 = { nounwind readonly }
|
||||
attributes #2 = { nounwind readnone }
|
||||
|
||||
!llvm.module.flags = !{!0}
|
||||
!pauseresume = !{!1}
|
||||
!llvm.ident = !{!2}
|
||||
!dx.version = !{!3}
|
||||
!dx.valver = !{!4}
|
||||
!dx.shaderModel = !{!5}
|
||||
!dx.resources = !{!6}
|
||||
!dx.typeAnnotations = !{!9, !12}
|
||||
!dx.entryPoints = !{!19}
|
||||
|
||||
!0 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!1 = !{!"hlsl-dxilemit", !"hlsl-dxilload"}
|
||||
!2 = !{!"dxc(private) 1.8.0.4514 (d9bd2a706-dirty)"}
|
||||
!3 = !{i32 1, i32 6}
|
||||
!4 = !{i32 1, i32 8}
|
||||
!5 = !{!"ps", i32 6, i32 6}
|
||||
!6 = !{!7, null, null, null}
|
||||
!7 = !{!8}
|
||||
!8 = !{i32 0, %struct.ByteAddressBuffer* @"\01?g_buff@@3UByteAddressBuffer@@A", !"g_buff", i32 0, i32 0, i32 1, i32 11, i32 0, null}
|
||||
!9 = !{i32 0, %struct.retval undef, !10}
|
||||
!10 = !{i32 16, !11}
|
||||
!11 = !{i32 6, !"value", i32 3, i32 0, i32 4, !"SV_Target0", i32 7, i32 9}
|
||||
!12 = !{i32 1, void (<4 x float>*)* @main, !13}
|
||||
!13 = !{!14, !16}
|
||||
!14 = !{i32 0, !15, !15}
|
||||
!15 = !{}
|
||||
!16 = !{i32 1, !17, !18}
|
||||
!17 = !{i32 4, !"SV_Target0", i32 7, i32 9}
|
||||
!18 = !{i32 0}
|
||||
!19 = !{void (<4 x float>*)* @main, !"main", !20, !6, null}
|
||||
!20 = !{null, !21, null}
|
||||
!21 = !{!22}
|
||||
!22 = !{i32 0, !"SV_Target", i8 9, i8 16, !18, i8 0, i32 1, i8 4, i32 0, i8 0, null}
|
||||
!23 = !DILocation(line: 15, column: 22, scope: !24)
|
||||
!24 = !DISubprogram(name: "main", scope: !25, file: !25, line: 14, type: !26, isLocal: false, isDefinition: true, scopeLine: 14, flags: DIFlagPrototyped, isOptimized: false, function: void (<4 x float>*)* @main)
|
||||
!25 = !DIFile(filename: "/home/amaiorano/src/external/DirectXShaderCompiler/tools/clang/test/DXC/Passes/DxilRemoveDeadBlocks/switch-with-multiple-same-successor.hlsl", directory: "")
|
||||
!26 = !DISubroutineType(types: !15)
|
||||
!27 = !DILocation(line: 15, column: 14, scope: !24)
|
||||
!28 = !DILocation(line: 18, column: 3, scope: !24)
|
||||
!29 = !DILocation(line: 19, column: 13, scope: !24)
|
||||
!30 = !DILocation(line: 19, column: 9, scope: !24)
|
||||
!31 = !DILocation(line: 23, column: 5, scope: !24)
|
||||
!32 = !DILocation(line: 49, column: 7, scope: !24)
|
||||
!33 = !DILocation(line: 49, column: 19, scope: !24)
|
||||
!34 = !DILocation(line: 51, column: 3, scope: !24)
|
||||
!35 = !DILocation(line: 53, column: 18, scope: !24)
|
||||
!36 = !DILocation(line: 54, column: 1, scope: !24)
|
||||
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