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Reapply "[HLSL] set alwaysinline on HLSL functions (llvm#106588)"
This reverts commit 4a63f4d. It was reverted because of a buildbot breakage, but the fix-forward has landed (llvm#109023).
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,76 @@ | ||
| // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -std=hlsl202x -emit-llvm -o - -disable-llvm-passes %s | FileCheck %s --check-prefixes=CHECK,NOINLINE | ||
| // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -std=hlsl202x -emit-llvm -o - -disable-llvm-passes %s | FileCheck %s --check-prefixes=CHECK,NOINLINE | ||
| // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -std=hlsl202x -emit-llvm -o - -O0 %s | FileCheck %s --check-prefixes=CHECK,INLINE | ||
| // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -std=hlsl202x -emit-llvm -o - -O0 %s | FileCheck %s --check-prefixes=CHECK,INLINE | ||
| // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -std=hlsl202x -emit-llvm -o - -O1 %s | FileCheck %s --check-prefixes=CHECK,INLINE | ||
| // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -std=hlsl202x -emit-llvm -o - -O1 %s | FileCheck %s --check-prefixes=CHECK,INLINE | ||
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| // Tests that implicit constructor calls for user classes will always be inlined. | ||
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| struct Weed { | ||
| Weed() {Count += 1;} | ||
| [[maybe_unused]] void pull() {Count--;} | ||
| static int weedCount() { return Count; } | ||
| private: | ||
| static int Count; | ||
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| } YardWeeds; | ||
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| int Weed::Count = 1; // It begins. . . | ||
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| struct Kitty { | ||
| unsigned burrsInFur; | ||
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| Kitty() { | ||
| burrsInFur = 0; | ||
| } | ||
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| void wanderInYard(int hours) { | ||
| burrsInFur = hours*Weed::weedCount()/8; | ||
| } | ||
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| void lick() { | ||
| if(burrsInFur) { | ||
| burrsInFur--; | ||
| Weed w; | ||
| } | ||
| } | ||
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| } Nion; | ||
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| void NionsDay(int hours) { | ||
| static Kitty Nion; | ||
| Nion.wanderInYard(hours); | ||
| while(Nion.burrsInFur) Nion.lick(); | ||
| } | ||
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| // CHECK: define void @main() | ||
| // CHECK-NEXT: entry: | ||
| // Verify constructor is emitted | ||
| // NOINLINE-NEXT: call void @_GLOBAL__sub_I_inline_constructors.hlsl() | ||
| // NOINLINE-NEXT: %0 = call i32 @llvm.dx.flattened.thread.id.in.group() | ||
| // NOINLINE-NEXT: call void @"?main@@YAXI@Z"(i32 %0) | ||
| // Verify inlining leaves only calls to "llvm." intrinsics | ||
| // INLINE-NOT: call {{[^@]*}} @{{[^l][^l][^v][^m][^\.]}} | ||
| // CHECK: ret void | ||
| [shader("compute")] | ||
| [numthreads(1,1,1)] | ||
| void main(unsigned GI : SV_GroupIndex) { | ||
| NionsDay(10); | ||
| } | ||
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| // CHECK: define void @rainyMain() | ||
| // CHECK-NEXT: entry: | ||
| // Verify constructor is emitted | ||
| // NOINLINE-NEXT: call void @_GLOBAL__sub_I_inline_constructors.hlsl() | ||
| // NOINLINE-NEXT: call void @"?rainyMain@@YAXXZ"() | ||
| // Verify inlining leaves only calls to "llvm." intrinsics | ||
| // INLINE-NOT: call {{[^@]*}} @{{[^l][^l][^v][^m][^\.]}} | ||
| // CHECK: ret void | ||
| [shader("compute")] | ||
| [numthreads(1,1,1)] | ||
| void rainyMain() { | ||
| NionsDay(1); | ||
| } | ||
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