forked from OSchip/llvm-project
82 lines
2.4 KiB
LLVM
82 lines
2.4 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -gvn -S %s | FileCheck %s
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; Test for PR46054. Make sure we correctly invalidate MemoryDependenceAnalysis,
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; after removing a nonlocaldef.
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @test_double(double* %data) {
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; CHECK-LABEL: @test_double(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[LUC:%.*]] = tail call noalias nonnull i64* @data()
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; CHECK-NEXT: store i64 1, i64* [[LUC]], align 8, !invariant.group !0
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; CHECK-NEXT: call void @fn(i64 1)
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; CHECK-NEXT: br i1 true, label [[A:%.*]], label [[ENTRY_B_CRIT_EDGE:%.*]]
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; CHECK: entry.B_crit_edge:
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; CHECK-NEXT: br label [[B:%.*]]
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; CHECK: A:
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; CHECK-NEXT: br label [[B]]
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; CHECK: B:
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; CHECK-NEXT: call void @fn(i64 1)
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; CHECK-NEXT: ret void
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;
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entry:
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%luc = tail call noalias nonnull i64* @data()
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store i64 1, i64* %luc, !invariant.group !0
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%QQ = load i64, i64* %luc, !invariant.group !0
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call void @fn(i64 %QQ)
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br i1 true, label %A, label %B
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A: ; preds = %loop
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br label %B
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B: ; preds = %A, %loop
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%QQ.1 = load i64, i64* %luc, !invariant.group !0
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call void @fn(i64 %QQ.1)
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ret void
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}
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declare void @fn(i64)
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declare noalias i64* @data()
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define void @test_double_ptr(double** %data) {
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; CHECK-LABEL: @test_double_ptr(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[LUC:%.*]] = tail call noalias nonnull i64** @data.ptr()
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; CHECK-NEXT: store i64* null, i64** [[LUC]], align 8, !invariant.group !0
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; CHECK-NEXT: call void @fn.ptr(i64* null)
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; CHECK-NEXT: br i1 true, label [[A:%.*]], label [[ENTRY_B_CRIT_EDGE:%.*]]
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; CHECK: entry.B_crit_edge:
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; CHECK-NEXT: br label [[B:%.*]]
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; CHECK: A:
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; CHECK-NEXT: br label [[B]]
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; CHECK: B:
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; CHECK-NEXT: call void @fn.ptr(i64* null)
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; CHECK-NEXT: ret void
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;
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entry:
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%luc = tail call noalias nonnull i64** @data.ptr()
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store i64* null, i64** %luc, !invariant.group !0
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%QQ = load i64*, i64** %luc, !invariant.group !0
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call void @fn.ptr(i64* %QQ)
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br i1 true, label %A, label %B
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A: ; preds = %loop
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br label %B
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B: ; preds = %A, %loop
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%QQ.1 = load i64*, i64** %luc, !invariant.group !0
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call void @fn.ptr(i64* %QQ.1)
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ret void
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}
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declare void @fn.ptr(i64 *)
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declare noalias i64** @data.ptr()
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!0 = distinct !{}
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