; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
;; Ensure we don't change after value numbering by accidentally deleting the wrong expression.
; RUN: opt -passes=newgvn -S %s | FileCheck %s
define void @fn1() local_unnamed_addr #0 {
; CHECK-LABEL: @fn1(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_COND_PREHEADER:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: br label [[FOR_COND_PREHEADER]]
; CHECK: for.cond.preheader:
; CHECK-NEXT: [[H_031:%.*]] = phi i32 [ 5, [[ENTRY:%.*]] ], [ [[H_127:%.*]], [[WHILE_COND:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[H_128:%.*]] = phi i32 [ [[H_031]], [[FOR_COND_PREHEADER]] ], [ [[H_2:%.*]], [[FOR_INC:%.*]] ]
; CHECK-NEXT: br label [[IF_THEN:%.*]]
; CHECK: if.then:
; CHECK-NEXT: br i1 false, label [[L_LOOPEXIT:%.*]], label [[IF_END:%.*]]
; CHECK: if.end:
; CHECK-NEXT: br i1 undef, label [[FOR_INC]], label [[IF_END9:%.*]]
; CHECK: if.end9:
; CHECK-NEXT: br label [[FOR_INC]]
; CHECK: for.inc:
; CHECK-NEXT: [[H_2]] = phi i32 [ [[H_128]], [[IF_END]] ], [ 0, [[IF_END9]] ]
; CHECK-NEXT: br i1 undef, label [[WHILE_COND10_LOOPEXIT:%.*]], label [[FOR_BODY]]
; CHECK: while.cond10.loopexit:
; CHECK-NEXT: br label [[WHILE_COND10:%.*]]
; CHECK: while.cond10:
; CHECK-NEXT: [[H_127]] = phi i32 [ [[H_126:%.*]], [[IF_END18:%.*]] ], [ [[H_125:%.*]], [[L:%.*]] ], [ [[H_2]], [[WHILE_COND10_LOOPEXIT]] ]
; CHECK-NEXT: br i1 undef, label [[WHILE_COND]], label [[WHILE_BODY12:%.*]]
; CHECK: while.body12:
; CHECK-NEXT: br i1 undef, label [[IF_END18]], label [[L]]
; CHECK: L.loopexit:
; CHECK-NEXT: store i8 poison, ptr null, align 1
; CHECK-NEXT: br label [[L]]
; CHECK: L:
; CHECK-NEXT: [[H_125]] = phi i32 [ [[H_127]], [[WHILE_BODY12]] ], [ poison, [[L_LOOPEXIT]] ]
; CHECK-NEXT: br i1 undef, label [[WHILE_COND10]], label [[IF_END18]]
; CHECK: if.end18:
; CHECK-NEXT: [[H_126]] = phi i32 [ [[H_125]], [[L]] ], [ [[H_127]], [[WHILE_BODY12]] ]
; CHECK-NEXT: br label [[WHILE_COND10]]
;
entry:
br label %for.cond.preheader
while.cond: ; preds = %while.cond10
br label %for.cond.preheader
for.cond.preheader: ; preds = %while.cond, %entry
%h.031 = phi i32 [ 5, %entry ], [ %h.127, %while.cond ]
br label %for.body
for.body: ; preds = %for.inc, %for.cond.preheader
%h.128 = phi i32 [ %h.031, %for.cond.preheader ], [ %h.2, %for.inc ]
br label %if.then
if.then: ; preds = %for.body
br i1 false, label %L.loopexit, label %if.end
if.end: ; preds = %if.then
br i1 undef, label %for.inc, label %if.end9
if.end9: ; preds = %if.end
br label %for.inc
for.inc: ; preds = %if.end9, %if.end
%h.2 = phi i32 [ %h.128, %if.end ], [ 0, %if.end9 ]
br i1 undef, label %while.cond10.loopexit, label %for.body
while.cond10.loopexit: ; preds = %for.inc
%h.2.lcssa = phi i32 [ %h.2, %for.inc ]
br label %while.cond10
while.cond10: ; preds = %if.end18, %L, %while.cond10.loopexit
%h.127 = phi i32 [ %h.126, %if.end18 ], [ %h.125, %L ], [ %h.2.lcssa, %while.cond10.loopexit ]
br i1 undef, label %while.cond, label %while.body12
while.body12: ; preds = %while.cond10
br i1 undef, label %if.end18, label %L
L.loopexit: ; preds = %if.then
br label %L
L: ; preds = %L.loopexit, %while.body12
%h.125 = phi i32 [ %h.127, %while.body12 ], [ undef, %L.loopexit ]
br i1 undef, label %while.cond10, label %if.end18
if.end18: ; preds = %L, %while.body12
%h.126 = phi i32 [ %h.125, %L ], [ %h.127, %while.body12 ]
br label %while.cond10
}
define void @hoge() local_unnamed_addr #0 {
; CHECK-LABEL: @hoge(
; CHECK-NEXT: bb:
; CHECK-NEXT: br label [[BB1:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[TMP:%.*]] = phi i64 [ 0, [[BB:%.*]] ], [ [[TMP2:%.*]], [[BB1]] ]
; CHECK-NEXT: [[TMP2]] = add nuw nsw i64 [[TMP]], 1
; CHECK-NEXT: br label [[BB1]]
;
bb:
br label %bb1
bb1: ; preds = %bb1, %bb
%tmp = phi i64 [ 0, %bb ], [ %tmp2, %bb1 ]
%tmp2 = add nuw nsw i64 %tmp, 1
br label %bb1
}
attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
define void @a() {
; CHECK-LABEL: @a(
; CHECK-NEXT: b:
; CHECK-NEXT: store ptr null, ptr null, align 8
; CHECK-NEXT: br label [[D:%.*]]
; CHECK: d:
; CHECK-NEXT: [[I:%.*]] = phi ptr [ null, [[B:%.*]] ], [ [[E:%.*]], [[F:%.*]] ]
; CHECK-NEXT: br i1 undef, label [[F]], label [[G:%.*]]
; CHECK: g:
; CHECK-NEXT: store ptr [[I]], ptr null, align 8
; CHECK-NEXT: unreachable
; CHECK: f:
; CHECK-NEXT: [[E]] = getelementptr i8, ptr [[I]], i64 1
; CHECK-NEXT: br label [[D]]
;
b:
store ptr null, ptr null
br label %d
d: ; preds = %f, %b
%i = phi ptr [ null, %b ], [ %e, %f ]
br i1 undef, label %f, label %g
g: ; preds = %d
%h = phi ptr [ %i, %d ]
store ptr %h, ptr null
unreachable
f: ; preds = %d
%e = getelementptr i8, ptr %i, i64 1
br label %d
}
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