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726bae9a66
We should apply fastcc whenever profitable. We can expand this list, but there are lots of conventions with performance implications that we don't want to change. Differential Revision: http://llvm-reviews.chandlerc.com/D2705 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202293 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
1.0 KiB
LLVM
47 lines
1.0 KiB
LLVM
; RUN: opt < %s -globalopt -S | FileCheck %s
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define internal i32 @f(i32* %m) {
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; CHECK-LABEL: define internal fastcc i32 @f
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%v = load i32* %m
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ret i32 %v
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}
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define internal x86_thiscallcc i32 @g(i32* %m) {
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; CHECK-LABEL: define internal fastcc i32 @g
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%v = load i32* %m
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ret i32 %v
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}
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; Leave this one alone, because the user went out of their way to request this
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; convention.
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define internal coldcc i32 @h(i32* %m) {
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; CHECK-LABEL: define internal coldcc i32 @h
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%v = load i32* %m
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ret i32 %v
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}
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define internal i32 @j(i32* %m) {
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; CHECK-LABEL: define internal i32 @j
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%v = load i32* %m
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ret i32 %v
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}
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define void @call_things() {
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%m = alloca i32
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call i32 @f(i32* %m)
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call x86_thiscallcc i32 @g(i32* %m)
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call coldcc i32 @h(i32* %m)
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call i32 @j(i32* %m)
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ret void
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}
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@llvm.used = appending global [1 x i8*] [
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i8* bitcast (i32(i32*)* @j to i8*)
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], section "llvm.metadata"
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; CHECK-LABEL: define void @call_things()
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; CHECK: call fastcc i32 @f
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; CHECK: call fastcc i32 @g
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; CHECK: call coldcc i32 @h
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; CHECK: call i32 @j
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