forked from OSchip/llvm-project
35 lines
761 B
LLVM
35 lines
761 B
LLVM
; Check that modelling of CC/CCRegs does not stop MachineCSE from
|
|
; removing a compare. MachineCSE will not extend a live range of an
|
|
; allocatable or reserved phys reg.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
declare void @bar(i8)
|
|
|
|
; Check the low end of the CH range.
|
|
define void @f1(i32 %lhs) {
|
|
; CHECK-LABEL: BB#1:
|
|
; CHECK-NOT: cijlh %r0, 1, .LBB0_3
|
|
|
|
entry:
|
|
%and188 = and i32 %lhs, 255
|
|
%cmp189 = icmp ult i32 %and188, 2
|
|
br i1 %cmp189, label %if.then.191, label %if.else.201
|
|
|
|
if.then.191:
|
|
%cmp194 = icmp eq i32 %and188, 1
|
|
br i1 %cmp194, label %if.then.196, label %if.else.198
|
|
|
|
if.then.196:
|
|
call void @bar(i8 1);
|
|
br label %if.else.201
|
|
|
|
if.else.198:
|
|
call void @bar(i8 0);
|
|
br label %if.else.201
|
|
|
|
if.else.201:
|
|
ret void
|
|
}
|
|
|