mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-25 14:32:53 +00:00
ad75364815
non-profitable commute using outdated info. The test case would still fail because of poor pre-RA schedule. That will be fixed by MI scheduler. rdar://11472010 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157038 91177308-0d34-0410-b5e6-96231b3b80d8
17 lines
538 B
LLVM
17 lines
538 B
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-macosx -pre-RA-sched=source | FileCheck %s
|
|
|
|
; Teach two-address pass to update the "source" map so it doesn't perform a
|
|
; non-profitable commute using outdated info. The test case would still fail
|
|
; because of poor pre-RA schedule. That will be fixed by MI scheduler.
|
|
; rdar://11472010
|
|
define i32 @t(i32 %mask) nounwind readnone ssp {
|
|
entry:
|
|
; CHECK: t:
|
|
; CHECK-NOT: mov
|
|
%sub = add i32 %mask, -65535
|
|
%shr = lshr i32 %sub, 23
|
|
%and = and i32 %mask, 1
|
|
%add = add i32 %shr, %and
|
|
ret i32 %add
|
|
}
|