66 lines
2.0 KiB
LLVM
66 lines
2.0 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -S -memcpyopt -enable-memcpyopt-memoryssa=0 | FileCheck %s
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; RUN: opt < %s -S -memcpyopt -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@b = common dso_local local_unnamed_addr global i32 0, align 4
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@a = common dso_local local_unnamed_addr global i32 0, align 4
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declare dso_local i32 @f1()
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; Do not crash due to store first in BB.
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define dso_local void @f2() {
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; CHECK-LABEL: @f2(
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; CHECK-NEXT: for.end:
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; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* @b, align 4
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; CHECK-NEXT: ret void
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; CHECK: for.body:
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; CHECK-NEXT: store i32 [[TMP1:%.*]], i32* @a, align 4
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @f1()
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; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[CALL]], 0
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; CHECK-NEXT: [[TMP1]] = load i32, i32* @b, align 4
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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;
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for.end:
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%0 = load i32, i32* @b, align 4
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ret void
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for.body:
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store i32 %1, i32* @a, align 4
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%call = call i32 @f1()
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%cmp = icmp sge i32 %call, 0
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%1 = load i32, i32* @b, align 4
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br label %for.body
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}
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; Do not crash due to call not before store in BB.
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define dso_local void @f3() {
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; CHECK-LABEL: @f3(
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; CHECK-NEXT: for.end:
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; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* @b, align 4
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; CHECK-NEXT: ret void
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; CHECK: for.body:
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; CHECK-NEXT: [[T:%.*]] = add i32 [[T2:%.*]], 1
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; CHECK-NEXT: store i32 [[TMP1:%.*]], i32* @a, align 4
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @f1()
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; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[CALL]], 0
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; CHECK-NEXT: [[TMP1]] = load i32, i32* @b, align 4
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; CHECK-NEXT: [[T2]] = xor i32 [[T]], 5
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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;
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for.end:
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%0 = load i32, i32* @b, align 4
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ret void
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for.body:
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%t = add i32 %t2, 1
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store i32 %1, i32* @a, align 4
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%call = call i32 @f1()
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%cmp = icmp sge i32 %call, 0
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%1 = load i32, i32* @b, align 4
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%t2 = xor i32 %t, 5
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br label %for.body
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}
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