derek.holloway
7502bf64a4
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38 lines
1.8 KiB
LLVM
38 lines
1.8 KiB
LLVM
; RUN: opt -S -passes='dxil-op-lower' -mtriple=dxil-pc-shadermodel6.3-library %s | FileCheck %s --check-prefixes=CHECK,CHECK-SM63
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; RUN: opt -S -passes='dxil-op-lower' -mtriple=dxil-pc-shadermodel6.6-library %s | FileCheck %s --check-prefixes=CHECK,CHECK-SM66
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; RUN: opt -S -dxil-prepare -dxil-embed -mtriple=dxil-pc-shadermodel6.6-library %s | FileCheck %s --check-prefixes=CHECK,CHECK-EMBED
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; Lifetime intrinsics are not valid prior to shader model 6.6 and are instead
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; replaced with undef stores, provided the validator version is 1.6 or greater
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; The dxil-embed pass will remove lifetime intrinsics because they transformed
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; in a way that is illegal in modern LLVM IR before serializing to DXIL bitcode.
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; So we check that no bitcast or lifetime intrinsics remain after dxil-embed
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; CHECK-LABEL: define void @test_legal_lifetime() {
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; CHECK-NEXT: [[ACCUM_I_FLAT:%.*]] = alloca [1 x i32], align 4
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32, ptr [[ACCUM_I_FLAT]], i32 0
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; CHECK-SM63-NEXT: store [1 x i32] undef, ptr [[ACCUM_I_FLAT]], align 4
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; CHECK-SM66-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[ACCUM_I_FLAT]])
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; CHECK-EMBED-NOT: bitcast
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; CHECK-EMBED-NOT: lifetime
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; CHECK-NEXT: store i32 0, ptr [[GEP]], align 4
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; CHECK-SM63-NEXT: store [1 x i32] undef, ptr [[ACCUM_I_FLAT]], align 4
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; CHECK-SM66-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[ACCUM_I_FLAT]])
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; CHECK-EMBED-NOT: bitcast
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; CHECK-EMBED-NOT: lifetime
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; CHECK-NEXT: ret void
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;
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define void @test_legal_lifetime() {
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%accum.i.flat = alloca [1 x i32], align 4
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%gep = getelementptr i32, ptr %accum.i.flat, i32 0
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call void @llvm.lifetime.start.p0(ptr nonnull %accum.i.flat)
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store i32 0, ptr %gep, align 4
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call void @llvm.lifetime.end.p0(ptr nonnull %accum.i.flat)
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ret void
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}
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; Set the validator version to 1.6
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!dx.valver = !{!0}
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!0 = !{i32 1, i32 6}
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