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.
56 lines
2.5 KiB
HLSL
56 lines
2.5 KiB
HLSL
// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -emit-llvm -disable-llvm-passes -o - -std=hlsl202x %s | FileCheck %s
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struct Pair {
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int First;
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int Second;
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int getFirst() {
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Pair Another = {5, 10};
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this = Another;
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return this.First;
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}
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int getSecond() {
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this = Pair();
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return Second;
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}
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void operator=(Pair P) {
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First = P.First;
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Second = 2;
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}
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};
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[numthreads(1, 1, 1)]
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void main() {
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Pair Vals = {1, 2};
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Vals.First = Vals.getFirst();
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Vals.Second = Vals.getSecond();
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}
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// This test makes a probably safe assumption that HLSL 202x includes operator overloading for assignment operators.
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// CHECK: define linkonce_odr hidden noundef i32 @_ZN4Pair8getFirstEv(ptr noundef nonnull align 1 dereferenceable(8) %this) #0 align 2 {
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// CHECK-NEXT:entry:
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// CHECK-NEXT:%this.addr = alloca ptr, align 4
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// CHECK-NEXT:%Another = alloca %struct.Pair, align 1
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// CHECK-NEXT:%agg.tmp = alloca %struct.Pair, align 1
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// CHECK-NEXT:store ptr %this, ptr %this.addr, align 4
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// CHECK-NEXT:%this1 = load ptr, ptr %this.addr, align 4
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// CHECK-NEXT:%First = getelementptr inbounds nuw %struct.Pair, ptr %Another, i32 0, i32 0
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// CHECK-NEXT:store i32 5, ptr %First, align 1
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// CHECK-NEXT:%Second = getelementptr inbounds nuw %struct.Pair, ptr %Another, i32 0, i32 1
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// CHECK-NEXT:store i32 10, ptr %Second, align 1
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// CHECK-NEXT:call void @llvm.memcpy.p0.p0.i32(ptr align 1 %agg.tmp, ptr align 1 %Another, i32 8, i1 false)
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// CHECK-NEXT:call void @_ZN4PairaSES_(ptr noundef nonnull align 1 dereferenceable(8) %this1, ptr noundef byval(%struct.Pair) align 1 %agg.tmp)
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// CHECK-NEXT:%First2 = getelementptr inbounds nuw %struct.Pair, ptr %this1, i32 0, i32 0
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// CHECK-NEXT:%0 = load i32, ptr %First2, align 1
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// CHECK-NEXT:ret i32 %0
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// CHECK: define linkonce_odr hidden noundef i32 @_ZN4Pair9getSecondEv(ptr noundef nonnull align 1 dereferenceable(8) %this) #0 align 2 {
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// CHECK-NEXT:entry:
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// CHECK-NEXT:%this.addr = alloca ptr, align 4
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// CHECK-NEXT:%agg.tmp = alloca %struct.Pair, align 1
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// CHECK-NEXT:store ptr %this, ptr %this.addr, align 4
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// CHECK-NEXT:%this1 = load ptr, ptr %this.addr, align 4
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// CHECK-NEXT:call void @llvm.memset.p0.i32(ptr align 1 %agg.tmp, i8 0, i32 8, i1 false)
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// CHECK-NEXT:call void @_ZN4PairaSES_(ptr noundef nonnull align 1 dereferenceable(8) %this1, ptr noundef byval(%struct.Pair) align 1 %agg.tmp)
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// CHECK-NEXT:%Second = getelementptr inbounds nuw %struct.Pair, ptr %this1, i32 0, i32 1
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// CHECK-NEXT:%0 = load i32, ptr %Second, align 1
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// CHECK-NEXT:ret i32 %0
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