llvm-project/llvm/test/Transforms/SimplifyCFG/fold-branch-to-common-dest-...

40 lines
1.2 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -passes=simplifycfg -bonus-inst-threshold=1 | FileCheck %s
declare i8* @llvm.strip.invariant.group.p0i8(i8*)
declare void @g1()
declare void @g2()
define void @f(i8* %a, i8* %b, i1 %c, i1 %d, i1 %e) {
; CHECK-LABEL: @f(
; CHECK-NEXT: [[A1:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* [[A:%.*]])
; CHECK-NEXT: [[B1:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* [[B:%.*]])
; CHECK-NEXT: [[I:%.*]] = icmp eq i8* [[A1]], [[B1]]
; CHECK-NEXT: [[OR_COND:%.*]] = select i1 [[C:%.*]], i1 [[I]], i1 false
; CHECK-NEXT: br i1 [[OR_COND]], label [[L2:%.*]], label [[L3:%.*]]
; CHECK: l2:
; CHECK-NEXT: call void @g1()
; CHECK-NEXT: br label [[RET:%.*]]
; CHECK: l3:
; CHECK-NEXT: call void @g2()
; CHECK-NEXT: br label [[RET]]
; CHECK: ret:
; CHECK-NEXT: ret void
;
br i1 %c, label %l1, label %l3
l1:
%a1 = call i8* @llvm.strip.invariant.group.p0i8(i8* %a)
%b1 = call i8* @llvm.strip.invariant.group.p0i8(i8* %b)
%i = icmp eq i8* %a1, %b1
br i1 %i, label %l2, label %l3
l2:
call void @g1()
br label %ret
l3:
call void @g2()
br label %ret
ret:
ret void
}