; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
; PR1786
define i32 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[RETVAL:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[I:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[Z:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[Z16:%.*]] = alloca i32, align 4
; CHECK-NEXT: %"alloca point" = bitcast i32 0 to i32
; CHECK-NEXT: store i32 0, ptr [[I]], align 4
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i8 1, 0
; CHECK-NEXT: br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE33:%.*]]
; CHECK: cond_true:
; CHECK-NEXT: store i32 0, ptr [[Z]], align 4
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[TMP:%.*]] = load i32, ptr [[Z]], align 4
; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[TMP]], 16384
; CHECK-NEXT: store i32 [[TMP1]], ptr [[Z]], align 4
; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[I]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = add i32 [[TMP2]], 1
; CHECK-NEXT: store i32 [[TMP3]], ptr [[I]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr [[I]], align 4
; CHECK-NEXT: [[TMP5:%.*]] = icmp sgt i32 [[TMP4]], 262144
; CHECK-NEXT: [[TMP56:%.*]] = zext i1 [[TMP5]] to i8
; CHECK-NEXT: [[TOBOOL7:%.*]] = icmp ne i8 [[TMP56]], 0
; CHECK-NEXT: br i1 [[TOBOOL7]], label [[COND_TRUE8:%.*]], label [[COND_NEXT:%.*]]
; CHECK: cond_true8:
; CHECK-NEXT: call void @abort()
; CHECK-NEXT: unreachable
; CHECK: cond_next:
; CHECK-NEXT: [[TMP9:%.*]] = load i32, ptr [[Z]], align 4
; CHECK-NEXT: [[TMP10:%.*]] = icmp ne i32 [[TMP9]], 0
; CHECK-NEXT: [[TMP1011:%.*]] = zext i1 [[TMP10]] to i8
; CHECK-NEXT: [[TOBOOL12:%.*]] = icmp ne i8 [[TMP1011]], 0
; CHECK-NEXT: br i1 [[TOBOOL12]], label [[BB]], label [[BB13:%.*]]
; CHECK: bb13:
; CHECK-NEXT: call void @exit(i32 0)
; CHECK-NEXT: unreachable
; CHECK: cond_false33:
; CHECK-NEXT: call void @exit(i32 0)
; CHECK-NEXT: unreachable
;
entry:
%retval = alloca i32, align 4 ; <ptr> [#uses=1]
%i = alloca i32, align 4 ; <ptr> [#uses=7]
%z = alloca i32, align 4 ; <ptr> [#uses=4]
%z16 = alloca i32, align 4 ; <ptr> [#uses=4]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store i32 0, ptr %i
%toBool = icmp ne i8 1, 0 ; <i1> [#uses=1]
br i1 %toBool, label %cond_true, label %cond_false
cond_true: ; preds = %entry
store i32 0, ptr %z
br label %bb
bb: ; preds = %cond_next, %cond_true
%tmp = load i32, ptr %z ; <i32> [#uses=1]
%tmp1 = sub i32 %tmp, 16384 ; <i32> [#uses=1]
store i32 %tmp1, ptr %z
%tmp2 = load i32, ptr %i ; <i32> [#uses=1]
%tmp3 = add i32 %tmp2, 1 ; <i32> [#uses=1]
store i32 %tmp3, ptr %i
%tmp4 = load i32, ptr %i ; <i32> [#uses=1]
%tmp5 = icmp sgt i32 %tmp4, 262144 ; <i1> [#uses=1]
%tmp56 = zext i1 %tmp5 to i8 ; <i8> [#uses=1]
%toBool7 = icmp ne i8 %tmp56, 0 ; <i1> [#uses=1]
br i1 %toBool7, label %cond_true8, label %cond_next
cond_true8: ; preds = %bb
call void @abort( )
unreachable
cond_next: ; preds = %bb
%tmp9 = load i32, ptr %z ; <i32> [#uses=1]
%tmp10 = icmp ne i32 %tmp9, 0 ; <i1> [#uses=1]
%tmp1011 = zext i1 %tmp10 to i8 ; <i8> [#uses=1]
%toBool12 = icmp ne i8 %tmp1011, 0 ; <i1> [#uses=1]
br i1 %toBool12, label %bb, label %bb13
bb13: ; preds = %cond_next
call void @exit( i32 0 )
unreachable
cond_false: ; preds = %entry
%toBool14 = icmp ne i8 1, 0 ; <i1> [#uses=1]
br i1 %toBool14, label %cond_true15, label %cond_false33
cond_true15: ; preds = %cond_false
store i32 0, ptr %z16
br label %bb17
bb17: ; preds = %cond_next27, %cond_true15
%tmp18 = load i32, ptr %z16 ; <i32> [#uses=1]
%tmp19 = sub i32 %tmp18, 16384 ; <i32> [#uses=1]
store i32 %tmp19, ptr %z16
%tmp20 = load i32, ptr %i ; <i32> [#uses=1]
%tmp21 = add i32 %tmp20, 1 ; <i32> [#uses=1]
store i32 %tmp21, ptr %i
%tmp22 = load i32, ptr %i ; <i32> [#uses=1]
%tmp23 = icmp sgt i32 %tmp22, 262144 ; <i1> [#uses=1]
%tmp2324 = zext i1 %tmp23 to i8 ; <i8> [#uses=1]
%toBool25 = icmp ne i8 %tmp2324, 0 ; <i1> [#uses=1]
br i1 %toBool25, label %cond_true26, label %cond_next27
cond_true26: ; preds = %bb17
call void @abort( )
unreachable
cond_next27: ; preds = %bb17
%tmp28 = load i32, ptr %z16 ; <i32> [#uses=1]
%tmp29 = icmp ne i32 %tmp28, 0 ; <i1> [#uses=1]
%tmp2930 = zext i1 %tmp29 to i8 ; <i8> [#uses=1]
%toBool31 = icmp ne i8 %tmp2930, 0 ; <i1> [#uses=1]
br i1 %toBool31, label %bb17, label %bb32
bb32: ; preds = %cond_next27
call void @exit( i32 0 )
unreachable
cond_false33: ; preds = %cond_false
call void @exit( i32 0 )
unreachable
cond_next34: ; No predecessors!
br label %cond_next35
cond_next35: ; preds = %cond_next34
br label %return
return: ; preds = %cond_next35
%retval36 = load i32, ptr %retval ; <i32> [#uses=1]
ret i32 %retval36
}
declare void @abort()
declare void @exit(i32)
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