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dcfd3a798f
if the extension types were not the same. The result was that if you fed a select with sext and zext loads, as in the testcase, then it would get turned into a zext (or sext) of the select, which is wrong in the cases when it should have been an sext (resp. zext). Reported and diagnosed by Sebastien Deldon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119728 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
386 B
LLVM
16 lines
386 B
LLVM
; RUN: llc < %s -march=x86 | FileCheck %s
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; Both values were being zero extended.
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@u = external global i8
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@s = external global i8
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define i32 @foo(i1 %cond) {
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; CHECK: @foo
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%u_base = load i8* @u
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%u_val = zext i8 %u_base to i32
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; CHECK: movzbl
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; CHECK: movsbl
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%s_base = load i8* @s
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%s_val = sext i8 %s_base to i32
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%val = select i1 %cond, i32 %u_val, i32 %s_val
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ret i32 %val
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}
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