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when a compile time constant is known. This occurs when implicitly zero extending function arguments from 16 bits to 32 bits. The 8 bit case doesn't need to be handled, as the 8 bit constants are encoded directly, thereby not needing a separate load instruction to form the constant into a register. <rdar://problem/11481151> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158659 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
438 B
LLVM
20 lines
438 B
LLVM
; RUN: llc %s -o - | FileCheck %s
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; ModuleID = 'bic.c'
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target triple = "thumbv7-apple-ios3.0.0"
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define zeroext i16 @foo16(i16 zeroext %f) nounwind readnone optsize ssp {
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entry:
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; CHECK: .thumb_func _foo16
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; CHECK: {{bic[^#]*#3}}
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%and = and i16 %f, -4
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ret i16 %and
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}
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define i32 @foo32(i32 %f) nounwind readnone optsize ssp {
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entry:
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; CHECK: .thumb_func _foo32
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; CHECK: {{bic[^#]*#3}}
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%and = and i32 %f, -4
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ret i32 %and
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}
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