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53e83a2eb9
optimize it to a SINT_TO_FP when the sign bit is known zero. X86 isel should perform the optimization itself. llvm-svn: 62504
15 lines
514 B
LLVM
15 lines
514 B
LLVM
; RUN: llvm-as < %s | llc -march=x86 -mcpu=yonah | not grep {sub.*esp}
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; RUN: llvm-as < %s | llc -march=x86 -mcpu=yonah | grep cvtsi2ss
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; rdar://6034396
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i386-apple-darwin8"
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define void @test(i32 %x, float* %y) nounwind {
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entry:
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lshr i32 %x, 23 ; <i32>:0 [#uses=1]
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uitofp i32 %0 to float ; <float>:1 [#uses=1]
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store float %1, float* %y
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ret void
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}
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