test/Transforms/NewGVN/pr34452.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -newgvn -S < %s | FileCheck %s
;; Ensure we don't crash when simplifying aggregate value expressions
source_filename = "bugpoint-output-09f7a24.bc"

@WHOLELINE = external local_unnamed_addr global i32, align 4

; Function Attrs: nounwind uwtable
define void @sgrep() local_unnamed_addr #0 {
; CHECK-LABEL: @sgrep(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[TMP0:%.*]] = load i32, i32* @WHOLELINE, align 4, !tbaa !1
; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[TMP0]], 0
; CHECK-NEXT:    [[DOT:%.*]] = select i1 [[TOBOOL]], i32 2048, i32 2047
; CHECK-NEXT:    br label [[WHILE_BODY_US:%.*]]
; CHECK:       while.body.us:
; CHECK-NEXT:    [[START_1230_US:%.*]] = phi i32 [ [[DOT]], [[ENTRY:%.*]] ], [ 0, [[WHILE_BODY_US]] ]
; CHECK-NEXT:    [[TMP1:%.*]] = sext i32 [[START_1230_US]] to i64
; CHECK-NEXT:    [[TMP2:%.*]] = call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 0, i64 [[TMP1]])
; CHECK-NEXT:    br label [[WHILE_BODY_US]]
;
entry:
  %0 = load i32, i32* @WHOLELINE, align 4, !tbaa !1
  %tobool = icmp eq i32 %0, 0
  %. = select i1 %tobool, i32 2048, i32 2047
  br label %while.body.us

while.body.us:                                    ; preds = %while.body.us, %entry
  %start.1230.us = phi i32 [ %., %entry ], [ 0, %while.body.us ]
  %1 = sext i32 %start.1230.us to i64
  %2 = call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 0, i64 %1)
  %.res302 = extractvalue { i64, i1 } %2, 0
  %3 = icmp sge i64 undef, %.res302
  br label %while.body.us
}

; Function Attrs: nounwind readnone speculatable
declare { i64, i1 } @llvm.sadd.with.overflow.i64(i64, i64) #1

attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "polly-optimized" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone speculatable }

!llvm.ident = !{!0}

!0 = !{!"clang version 6.0.0 (trunk 311664) (llvm/trunk 311666)"}
!1 = !{!2, !2, i64 0}
!2 = !{!"int", !3, i64 0}
!3 = !{!"omnipotent char", !4, i64 0}
!4 = !{!"Simple C/C++ TBAA"}