b96d3b2dd8
Add support for the new pass manager to MemorySSA pass. Change MemorySSA to be computed eagerly upon construction. Change MemorySSAWalker to be owned by the MemorySSA object that creates it. Reviewers: dberlin, george.burgess.iv Subscribers: mcrosier, llvm-commits Differential Revision: http://reviews.llvm.org/D19664 llvm-svn: 271432
38 lines
1.2 KiB
LLVM
38 lines
1.2 KiB
LLVM
; RUN: opt -basicaa -memoryssa -analyze < %s 2>&1 | FileCheck %s
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; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s
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; Function Attrs: ssp uwtable
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define i32 @main() {
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entry:
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; CHECK: 1 = MemoryDef(liveOnEntry)
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; CHECK-NEXT: %call = call noalias i8* @_Znwm(i64 4)
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%call = call noalias i8* @_Znwm(i64 4)
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%0 = bitcast i8* %call to i32*
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; CHECK: 2 = MemoryDef(1)
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; CHECK-NEXT: %call1 = call noalias i8* @_Znwm(i64 4)
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%call1 = call noalias i8* @_Znwm(i64 4)
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%1 = bitcast i8* %call1 to i32*
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; CHECK: 3 = MemoryDef(2)
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; CHECK-NEXT: store i32 5, i32* %0, align 4
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store i32 5, i32* %0, align 4
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; CHECK: 4 = MemoryDef(3)
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; CHECK-NEXT: store i32 7, i32* %1, align 4
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store i32 7, i32* %1, align 4
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; CHECK: MemoryUse(3)
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; CHECK-NEXT: %2 = load i32, i32* %0, align 4
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%2 = load i32, i32* %0, align 4
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; CHECK: MemoryUse(4)
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; CHECK-NEXT: %3 = load i32, i32* %1, align 4
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%3 = load i32, i32* %1, align 4
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; CHECK: MemoryUse(3)
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; CHECK-NEXT: %4 = load i32, i32* %0, align 4
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%4 = load i32, i32* %0, align 4
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; CHECK: MemoryUse(4)
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; CHECK-NEXT: %5 = load i32, i32* %1, align 4
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%5 = load i32, i32* %1, align 4
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%add = add nsw i32 %3, %5
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ret i32 %add
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}
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declare noalias i8* @_Znwm(i64)
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