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ab767213fd
inline threshold if the global inline threshold is lower (as for -Oz). Reviewed by Chandler Carruth and Bill Wendling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157323 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
1005 B
LLVM
34 lines
1005 B
LLVM
; RUN: opt -S -Oz %s | FileCheck %s -check-prefix=OZ
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; RUN: opt -S -O2 %s | FileCheck %s -check-prefix=O2
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; The inline threshold for a function with the optsize attribute is currently
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; the same as the global inline threshold for -Os. Check that the optsize
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; function attribute don't alter the function specific inline threshold if the
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; global inline threshold is lower (as for -Oz).
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@a = global i32 4
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; This function should be larger than the inline threshold for -Oz (25), but
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; smaller than the inline threshold for optsize (75).
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define i32 @inner() {
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%a1 = load volatile i32* @a
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%x1 = add i32 %a1, %a1
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%a2 = load volatile i32* @a
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%x2 = add i32 %x1, %a2
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%a3 = load volatile i32* @a
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%x3 = add i32 %x2, %a3
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%a4 = load volatile i32* @a
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%x4 = add i32 %x3, %a4
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%a5 = load volatile i32* @a
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%x5 = add i32 %x3, %a5
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ret i32 %x5
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}
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; @inner() should be inlined for -O2 but not for -Oz.
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; OZ: call
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; O2-NOT: call
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define i32 @outer() optsize {
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%r = call i32 @inner()
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ret i32 %r
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}
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