llvm-project/llvm/test/Transforms/SimplifyCFG/FoldValueComparisonIntoPred...

77 lines
2.4 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
declare void @widget()
declare i16 @baz()
declare void @snork()
declare void @spam()
define void @zot() local_unnamed_addr align 2 personality i8* undef {
; CHECK-LABEL: @zot(
; CHECK-NEXT: bb:
; CHECK-NEXT: invoke void @widget()
; CHECK-NEXT: to label [[BB14:%.*]] unwind label [[BB21:%.*]]
; CHECK: bb14:
; CHECK-NEXT: [[I0:%.*]] = invoke i16 @baz()
; CHECK-NEXT: to label [[BB15:%.*]] unwind label [[BB21]]
; CHECK: bb15:
; CHECK-NEXT: switch i16 [[I0]], label [[BB19:%.*]] [
; CHECK-NEXT: i16 42, label [[BB23:%.*]]
; CHECK-NEXT: i16 21330, label [[BB23]]
; CHECK-NEXT: ]
; CHECK: bb19:
; CHECK-NEXT: invoke void @snork()
; CHECK-NEXT: to label [[BB20:%.*]] unwind label [[BB21]]
; CHECK: bb20:
; CHECK-NEXT: unreachable
; CHECK: common.ret:
; CHECK-NEXT: ret void
; CHECK: bb21:
; CHECK-NEXT: [[I22:%.*]] = landingpad { i8*, i32 }
; CHECK-NEXT: cleanup
; CHECK-NEXT: br label [[COMMON_RET:%.*]]
; CHECK: bb23:
; CHECK-NEXT: invoke void @spam()
; CHECK-NEXT: to label [[COMMON_RET]] unwind label [[BB21]]
;
bb:
invoke void @widget()
to label %bb14 unwind label %bb21
bb14: ; preds = %bb
%i0 = invoke i16 @baz()
to label %bb15 unwind label %bb25
bb15: ; preds = %bb14
%i16 = icmp eq i16 %i0, 42
br i1 %i16, label %bb23, label %bb17
bb17: ; preds = %bb15
%i18 = icmp eq i16 %i0, 21330
br i1 %i18, label %bb23, label %bb19
bb19: ; preds = %bb17
invoke void @snork()
to label %bb20 unwind label %bb25
bb20: ; preds = %bb19
unreachable
bb21: ; preds = %bb
%i22 = landingpad { i8*, i32 }
cleanup
ret void
bb23: ; preds = %bb17, %bb15
invoke void @spam()
to label %bb24 unwind label %bb25
bb24: ; preds = %bb25, %bb23
ret void
bb25: ; preds = %bb23, %bb19, %bb14
%i26 = landingpad { i8*, i32 }
cleanup
br label %bb24
}