87b2e41416
This patch adds function summaries, so that we don't need to recompute various properties about function parameters/return values at each callsite of a function. It also adds many interprocedural tests for CFLAA. Patch by Jia Chen. Differential Revision: http://reviews.llvm.org/D21475#inline-182390 llvm-svn: 273219
23 lines
761 B
LLVM
23 lines
761 B
LLVM
; This testcase ensures that CFL AA won't be too conservative when trying to do
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; interprocedural analysis on simple callee
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; RUN: opt < %s -disable-basicaa -cfl-aa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
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; RUN: opt < %s -aa-pipeline=cfl-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
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; CHECK-LABEL: Function: noop_callee
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; CHECK: MayAlias: i32* %arg1, i32* %arg2
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define void @noop_callee(i32* %arg1, i32* %arg2) {
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store i32 0, i32* %arg1
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store i32 0, i32* %arg2
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ret void
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}
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; CHECK-LABEL: Function: test_noop
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; CHECK: NoAlias: i32* %a, i32* %b
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define void @test_noop() {
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%a = alloca i32, align 4
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%b = alloca i32, align 4
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call void @noop_callee(i32* %a, i32* %b)
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ret void
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}
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