pr33204.ll
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -newgvn -S %s | FileCheck %s
; Ensure that loads that bypass memory def-use chains get added as users of the new
; MemoryDef. Otherwise this test will not pass memory verification because the value
; of the load will not be reprocessed until verification.
; ModuleID = 'bugpoint-reduced-simplified.bc'
source_filename = "bugpoint-output-f242c4f.bc"
target triple = "x86_64-apple-darwin16.7.0"
@global = external global i32 #0
@global.1 = external global i32 #0
define void @hoge(i32 %arg) {
; CHECK-LABEL: @hoge(
; CHECK-NEXT: bb:
; CHECK-NEXT: br label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB2]]
; CHECK: bb2:
; CHECK-NEXT: [[TMP:%.*]] = phi i32 [ 0, [[BB1:%.*]] ], [ [[ARG:%.*]], [[BB:%.*]] ]
; CHECK-NEXT: br label [[BB6:%.*]]
; CHECK: bb3:
; CHECK-NEXT: [[TMP4:%.*]] = load i32, i32* @global, !h !0
; CHECK-NEXT: unreachable
; CHECK: bb6:
; CHECK-NEXT: store i32 [[TMP]], i32* @global.1, !h !0
; CHECK-NEXT: br i1 undef, label [[BB7:%.*]], label [[BB1]]
; CHECK: bb7:
; CHECK-NEXT: br i1 undef, label [[BB10:%.*]], label [[BB8:%.*]]
; CHECK: bb8:
; CHECK-NEXT: br i1 false, label [[BB9:%.*]], label [[BB3:%.*]]
; CHECK: bb9:
; CHECK-NEXT: store i8 undef, i8* null
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb10:
; CHECK-NEXT: store i32 0, i32* @global, !h !0
; CHECK-NEXT: br label [[BB7]]
;
bb:
br label %bb2
bb1: ; preds = %bb6
br label %bb2
bb2: ; preds = %bb1, %bb
%tmp = phi i32 [ 0, %bb1 ], [ %arg, %bb ]
br label %bb6
bb3: ; preds = %bb9, %bb8
%tmp4 = load i32, i32* @global, !h !0
%tmp5 = icmp eq i32 %tmp4, 0
unreachable
bb6: ; preds = %bb2
store i32 %tmp, i32* @global.1, !h !0
br i1 undef, label %bb7, label %bb1
bb7: ; preds = %bb10, %bb6
br i1 undef, label %bb10, label %bb8
bb8: ; preds = %bb7
br i1 false, label %bb9, label %bb3
bb9: ; preds = %bb8
call void @widget()
br label %bb3
bb10: ; preds = %bb7
store i32 0, i32* @global, !h !0
br label %bb7
}
declare void @widget()
attributes #0 = { align=4 }
!0 = !{}