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2b6fdd5413
Summary: Direct calls to dllimport functions are very common Windows. We should add them to the -O0 fast path. Reviewers: rafael Subscribers: llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D36197 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310152 91177308-0d34-0410-b5e6-96231b3b80d8
63 lines
1.6 KiB
LLVM
63 lines
1.6 KiB
LLVM
; RUN: llc -mtriple i386-pc-win32 < %s | FileCheck %s
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; RUN: llc -mtriple i386-pc-mingw32 < %s | FileCheck %s
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;
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; RUN: llc -mtriple i386-pc-mingw32 -O0 < %s | FileCheck %s
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; RUN: llc -mtriple i386-pc-windows-msvc -O0 < %s | FileCheck %s
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; PR6275
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;
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; RUN: opt -mtriple i386-pc-win32 -O3 -S < %s | FileCheck %s -check-prefix=OPT
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@Var1 = external dllimport global i32
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@Var2 = available_externally dllimport unnamed_addr constant i32 1
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declare dllimport void @fun()
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define available_externally dllimport void @inline1() {
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ret void
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}
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define available_externally dllimport void @inline2() alwaysinline {
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ret void
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}
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declare dllimport x86_stdcallcc void @stdfun() nounwind
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declare dllimport x86_fastcallcc void @fastfun() nounwind
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declare dllimport x86_thiscallcc void @thisfun() nounwind
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declare void @dummy(...)
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define void @use() nounwind {
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; CHECK: calll *__imp__fun
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call void @fun()
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; CHECK: calll *__imp__inline1
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; CHECK: calll *__imp__inline2
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call void @inline1()
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call void @inline2()
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; CHECK: calll *__imp__stdfun@0
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; CHECK: calll *__imp_@fastfun@0
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; CHECK: calll *__imp__thisfun
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call void @stdfun()
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call void @fastfun()
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call void @thisfun()
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; available_externally uses go away
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; OPT-NOT: call void @inline1()
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; OPT-NOT: call void @inline2()
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; OPT-NOT: load i32, i32* @Var2
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; OPT: call void (...) @dummy(i32 %1, i32 1)
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; CHECK-DAG: movl __imp__Var1, [[R1:%[a-z]{3}]]
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; CHECK-DAG: movl __imp__Var2, [[R2:%[a-z]{3}]]
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%1 = load i32, i32* @Var1
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%2 = load i32, i32* @Var2
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call void(...) @dummy(i32 %1, i32 %2)
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ret void
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}
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; CHECK: _fp:
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; CHECK-NEXT: .long _fun
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@fp = constant void ()* @fun
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