forked from OSchip/llvm-project
33 lines
1.2 KiB
LLVM
33 lines
1.2 KiB
LLVM
; RUN: llc %s -o - | FileCheck %s
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target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
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target triple = "i386-apple-macosx10.5"
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; Check that the merging of SP updates, when LEAs are involved, happen
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; correctly.
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; CHECK-LABEL: useLEA:
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; CHECK: calll _realloc
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; Make sure that the offset we get here is 8 + 16.
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; We used to have 8 + 1 because we were not reading the right immediate form
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; the LEA instruction.
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; CHECK-NEXT: leal 24(%esp), %esp
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define noalias i8* @useLEA(i8* nocapture %p, i32 %nbytes) #0 {
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entry:
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%cmp = icmp slt i32 %nbytes, 0
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br i1 %cmp, label %cond.end.3, label %cond.false
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cond.false: ; preds = %entry
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%tobool = icmp ne i32 %nbytes, 0
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%cond = select i1 %tobool, i32 %nbytes, i32 1
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%call = tail call i8* @realloc(i8* %p, i32 %cond)
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br label %cond.end.3
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cond.end.3: ; preds = %entry, %cond.false
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%cond4 = phi i8* [ %call, %cond.false ], [ null, %entry ]
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ret i8* %cond4
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}
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; Function Attrs: nounwind optsize
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declare noalias i8* @realloc(i8* nocapture, i32)
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attributes #0 = { nounwind optsize ssp "disable-tail-calls"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "target-features"="+lea-sp" }
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