forked from OSchip/llvm-project
76 lines
2.4 KiB
LLVM
76 lines
2.4 KiB
LLVM
; RUN: opt < %s -passes='require<profile-summary>,cgscc(inline)' -S -inlinecold-threshold=25 | FileCheck %s
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; Test that functions with attribute Cold are not inlined while the
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; same function without attribute Cold will be inlined.
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; RUN: opt < %s -passes='require<profile-summary>,cgscc(inline)' -S -inline-threshold=600 | FileCheck %s -check-prefix=OVERRIDE
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; The command line argument for inline-threshold should override
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; the default cold threshold, so a cold function with size bigger
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; than the default cold threshold (225) will be inlined.
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; RUN: opt < %s -passes='require<profile-summary>,cgscc(inline)' -S | FileCheck %s -check-prefix=DEFAULT
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; The same cold function will not be inlined with the default behavior.
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@a = global i32 4
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; This function should be larger than the cold threshold (75), but smaller
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; than the regular threshold.
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; Function Attrs: nounwind readnone uwtable
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define i32 @simpleFunction(i32 %a) #0 "function-inline-cost"="80" {
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entry:
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ret i32 %a
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}
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; Function Attrs: nounwind cold readnone uwtable
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define i32 @ColdFunction(i32 %a) #1 "function-inline-cost"="30" {
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; CHECK-LABEL: @ColdFunction
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; CHECK: ret
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; OVERRIDE-LABEL: @ColdFunction
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; OVERRIDE: ret
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; DEFAULT-LABEL: @ColdFunction
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; DEFAULT: ret
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entry:
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ret i32 %a
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}
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; This function should be larger than the default cold threshold (225).
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define i32 @ColdFunction2(i32 %a) #1 "function-inline-cost"="250" {
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; CHECK-LABEL: @ColdFunction2
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; CHECK: ret
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; OVERRIDE-LABEL: @ColdFunction2
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; OVERRIDE: ret
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; DEFAULT-LABEL: @ColdFunction2
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; DEFAULT: ret
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entry:
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ret i32 %a
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}
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; Function Attrs: nounwind readnone uwtable
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define i32 @bar(i32 %a) #0 {
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; CHECK-LABEL: @bar
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; CHECK: call i32 @ColdFunction(i32 5)
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; CHECK-NOT: call i32 @simpleFunction(i32 6)
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; CHECK: call i32 @ColdFunction2(i32 5)
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; CHECK: ret
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; OVERRIDE-LABEL: @bar
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; OVERRIDE-NOT: call i32 @ColdFunction(i32 5)
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; OVERRIDE-NOT: call i32 @simpleFunction(i32 6)
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; OVERRIDE-NOT: call i32 @ColdFunction2(i32 5)
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; OVERRIDE: ret
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; DEFAULT-LABEL: @bar
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; DEFAULT-NOT: call i32 @ColdFunction(i32 5)
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; DEFAULT-NOT: call i32 @simpleFunction(i32 6)
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; DEFAULT: call i32 @ColdFunction2(i32 5)
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; DEFAULT: ret
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entry:
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%0 = tail call i32 @ColdFunction(i32 5)
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%1 = tail call i32 @simpleFunction(i32 6)
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%2 = tail call i32 @ColdFunction2(i32 5)
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%3 = add i32 %0, %1
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%add = add i32 %2, %3
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ret i32 %add
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}
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declare void @extern()
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attributes #0 = { nounwind readnone uwtable }
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attributes #1 = { nounwind cold readnone uwtable }
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