forked from OSchip/llvm-project
27 lines
576 B
LLVM
27 lines
576 B
LLVM
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; RUN: llc --mtriple=powerpc64le-linux-gnu < %s | FileCheck %s
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; It tests in function DAGCombiner::visitSIGN_EXTEND_INREG
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; signext will not be combined with extload, and causes extra zext.
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declare void @g(i32 signext)
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define void @foo(i8* %p) {
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entry:
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br label %while.body
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while.body:
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%0 = load i8, i8* %p, align 1
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%conv = zext i8 %0 to i32
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%cmp = icmp sgt i8 %0, 0
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br i1 %cmp, label %if.then, label %while.body
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; CHECK: lbz
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; CHECK: extsb.
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; CHECK-NOT: rlwinm
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; CHECK: ble
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if.then:
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tail call void @g(i32 signext %conv)
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br label %while.body
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}
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