mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-19 03:29:22 +00:00
e526d8a955
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47711 91177308-0d34-0410-b5e6-96231b3b80d8
30 lines
647 B
LLVM
30 lines
647 B
LLVM
; RUN: llvm-as < %s | llc -march=x86 -mcpu=yonah | grep {testl.*%e.x.*%e.x}
|
|
; rdar://5752025
|
|
|
|
; We don't want to fold the and into the test, because the and clobbers its
|
|
; input forcing a copy. We want:
|
|
; movl $15, %ecx
|
|
; andl 4(%esp), %ecx
|
|
; testl %ecx, %ecx
|
|
; movl $42, %eax
|
|
; cmove %ecx, %eax
|
|
; ret
|
|
;
|
|
; Not:
|
|
; movl 4(%esp), %eax
|
|
; movl %eax, %ecx
|
|
; andl $15, %ecx
|
|
; testl $15, %eax
|
|
; movl $42, %eax
|
|
; cmove %ecx, %eax
|
|
; ret
|
|
|
|
define i32 @t1(i32 %X) nounwind {
|
|
entry:
|
|
%tmp2 = and i32 %X, 15 ; <i32> [#uses=2]
|
|
%tmp4 = icmp eq i32 %tmp2, 0 ; <i1> [#uses=1]
|
|
%retval = select i1 %tmp4, i32 %tmp2, i32 42 ; <i32> [#uses=1]
|
|
ret i32 %retval
|
|
}
|
|
|