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llvm-project/llvm/test/Analysis/MemorySSA/function-mem-attrs.ll

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[MSSA][NewPM] Handle tests with -print-memoryssa -print-memoryssa in legacy PM is print<memoryssa> in NPM. Pin tests with -print-memoryssa to legacy PM. Add corresponding tests for NPM where missing. This fixes "unknown pass name 'print-memoryssa'". Some tests still fail in Analysis/MemorySSA due to other passes that haven't been ported. pr43427.ll and pr43438.ll required adding -aa-pipeline=basic-aa, -loop-simplify (since it doesn't run on legacy PM by default), and decrementing some of the MemoryPhi numbers. Reviewed By: asbirlea Differential Revision: https://reviews.llvm.org/D85333
2020-08-06 02:12:29 +08:00
; RUN: opt -basic-aa -print-memoryssa -verify-memoryssa -enable-new-pm=0 -analyze < %s 2>&1 | FileCheck %s
[MemorySSA] Port to new pass manager 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
2016-06-02 05:30:40 +08:00
; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s
This patch adds MemorySSA to LLVM. Please see include/llvm/Transforms/Utils/MemorySSA.h for a description of MemorySSA, and what it does. Differential Revision: http://reviews.llvm.org/D7864 llvm-svn: 259595
2016-02-03 06:46:49 +08:00
;
; Test that various function attributes give us sane results.
@g = external global i32
declare void @readonlyFunction() readonly
declare void @noattrsFunction()
define void @readonlyAttr() {
; CHECK: 1 = MemoryDef(liveOnEntry)
; CHECK-NEXT: store i32 0
store i32 0, i32* @g, align 4
%1 = alloca i32, align 4
; CHECK: 2 = MemoryDef(1)
; CHECK-NEXT: store i32 0
store i32 0, i32* %1, align 4
; CHECK: MemoryUse(1)
; CHECK-NEXT: call void @readonlyFunction()
call void @readonlyFunction()
; CHECK: MemoryUse(1)
; CHECK-NEXT: call void @noattrsFunction() #
; Assume that #N is readonly
call void @noattrsFunction() readonly
; Sanity check that noattrsFunction is otherwise a MemoryDef
; CHECK: 3 = MemoryDef(2)
; CHECK-NEXT: call void @noattrsFunction()
call void @noattrsFunction()
ret void
}
declare void @argMemOnly(i32*) argmemonly
define void @inaccessableOnlyAttr() {
%1 = alloca i32, align 4
; CHECK: 1 = MemoryDef(liveOnEntry)
; CHECK-NEXT: store i32 0
store i32 0, i32* %1, align 4
; CHECK: 2 = MemoryDef(1)
; CHECK-NEXT: store i32 0
store i32 0, i32* @g, align 4
; CHECK: MemoryUse(1)
; CHECK-NEXT: call void @argMemOnly(i32* %1) #
; Assume that #N is readonly
call void @argMemOnly(i32* %1) readonly
; CHECK: 3 = MemoryDef(2)
; CHECK-NEXT: call void @argMemOnly(i32* %1)
call void @argMemOnly(i32* %1)
ret void
}