a027eb4472
Implements https://github.com/llvm/wg-hlsl/blob/main/proposals/0026-symbol-visibility.md. The change is to stop using the `hlsl.export` attribute. Instead, symbols with "program linkage" in HLSL will have export linkage with default visibility, and symbols with "external linkage" in HLSL will have export linkage with hidden visibility.
43 lines
1.6 KiB
HLSL
43 lines
1.6 KiB
HLSL
// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -emit-llvm -disable-llvm-passes %s -o - | FileCheck %s --check-prefixes=CHECK,NOINLINE
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// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -emit-llvm -O0 %s -o - | FileCheck %s --check-prefixes=CHECK,INLINE
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// Make sure global variable for ctors exist for lib profile.
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// CHECK:@llvm.global_ctors
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RWBuffer<float> Buffer;
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[shader("compute")]
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[numthreads(1,1,1)]
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void FirstEntry() {}
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// CHECK: define void @FirstEntry()
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// CHECK-NEXT: entry:
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// NOINLINE-NEXT: call void @_GLOBAL__sub_I_GlobalConstructorLib.hlsl()
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// NOINLINE-NEXT: call void @_Z10FirstEntryv()
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// Verify inlining leaves only calls to "llvm." intrinsics
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// INLINE-NOT: call {{[^@]*}} @{{[^l][^l][^v][^m][^\.]}}
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// CHECK: ret void
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[shader("compute")]
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[numthreads(1,1,1)]
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void SecondEntry() {}
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// CHECK: define void @SecondEntry()
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// CHECK-NEXT: entry:
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// NOINLINE-NEXT: call void @_GLOBAL__sub_I_GlobalConstructorLib.hlsl()
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// NOINLINE-NEXT: call void @_Z11SecondEntryv()
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// Verify inlining leaves only calls to "llvm." intrinsics
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// INLINE-NOT: call {{[^@]*}} @{{[^l][^l][^v][^m][^\.]}}
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// CHECK: ret void
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// Verify the constructor is alwaysinline
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// NOINLINE: ; Function Attrs: {{.*}}alwaysinline
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// NOINLINE-NEXT: define linkonce_odr hidden void @_ZN4hlsl8RWBufferIfEC2EjijjPKc({{.*}} [[CtorAttr:\#[0-9]+]]
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// NOINLINE: ; Function Attrs: {{.*}}alwaysinline
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// NOINLINE-NEXT: define internal void @_GLOBAL__sub_I_GlobalConstructorLib.hlsl() [[InitAttr:\#[0-9]+]]
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// NOINLINE-DAG: attributes [[InitAttr]] = {{.*}} alwaysinline
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// NOINLINE-DAG: attributes [[CtorAttr]] = {{.*}} alwaysinline
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