22 lines
628 B
LLVM
22 lines
628 B
LLVM
; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck %s
|
|
|
|
; TODO: (zext(select c, load1, load2)) -> (select c, zextload1, zextload2)
|
|
|
|
; CHECK-LABEL: foo
|
|
; CHECK: movzbl (%rdi), %eax
|
|
; CHECK-NEXT: movzbl 1(%rdi), %ecx
|
|
; CHECK-NEXT: testl %esi, %esi
|
|
; CHECK-NEXT: cmovel %eax, %ecx
|
|
; CHECK-NEXT: movzbl %cl, %eax
|
|
; CHECK-NEXT: retq
|
|
|
|
define i64 @foo(i8* %p, i1 zeroext %c) {
|
|
%ld1 = load volatile i8, i8* %p
|
|
%arrayidx1 = getelementptr inbounds i8, i8* %p, i64 1
|
|
%ld2 = load volatile i8, i8* %arrayidx1
|
|
%cond.v = select i1 %c, i8 %ld2, i8 %ld1
|
|
%cond = zext i8 %cond.v to i64
|
|
ret i64 %cond
|
|
}
|
|
|