llvm/test/CodeGen/X86/sext-ret-val.ll

; RUN: llc < %s -march=x86 | grep movzbl | count 1
; rdar://6699246

define signext i8 @t1(i8* %A) nounwind readnone ssp {
entry:
        %0 = icmp ne i8* %A, null
        %1 = zext i1 %0 to i8
        ret i8 %1
}

define i8 @t2(i8* %A) nounwind readnone ssp {
entry:
        %0 = icmp ne i8* %A, null
        %1 = zext i1 %0 to i8
        ret i8 %1
}
As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias (movzx/movsx) because they give more information. Revert that part of the patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129498 91177308-0d34-0410-b5e6-96231b3b80d8 2011-04-14 01:46:37 +00:00			`; RUN: llc < %s -march=x86 \| grep movzbl \| count 1`
Add a test case for PR3779: when to promote the function return value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67702 91177308-0d34-0410-b5e6-96231b3b80d8 2009-03-25 20:30:19 +00:00			`; rdar://6699246`

			`define signext i8 @t1(i8* %A) nounwind readnone ssp {`
			`entry:`
			`%0 = icmp ne i8* %A, null`
			`%1 = zext i1 %0 to i8`
			`ret i8 %1`
			`}`

			`define i8 @t2(i8* %A) nounwind readnone ssp {`
			`entry:`
			`%0 = icmp ne i8* %A, null`
			`%1 = zext i1 %0 to i8`
			`ret i8 %1`
			`}`