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