31 lines
870 B
LLVM
31 lines
870 B
LLVM
; This testcase ensures that CFL AA handles malloc and free in a sound and precise manner
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; RUN: opt < %s -disable-basicaa -cfl-steens-aa -aa-eval -print-no-aliases -disable-output 2>&1 | FileCheck %s
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; RUN: opt < %s -aa-pipeline=cfl-steens-aa -passes=aa-eval -print-no-aliases -disable-output 2>&1 | FileCheck %s
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declare noalias i8* @malloc(i64)
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declare noalias i8* @calloc(i64, i64)
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declare void @free(i8* nocapture)
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; CHECK: Function: test_malloc
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; CHECK: NoAlias: i8* %p, i8* %q
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define void @test_malloc(i8* %p) {
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%q = call i8* @malloc(i64 4)
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ret void
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}
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; CHECK: Function: test_calloc
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; CHECK: NoAlias: i8* %p, i8* %q
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define void @test_calloc(i8* %p) {
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%q = call i8* @calloc(i64 2, i64 4)
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ret void
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}
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; CHECK: Function: test_free
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; CHECK: NoAlias: i8* %p, i8* %q
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define void @test_free(i8* %p) {
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%q = alloca i8, align 4
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call void @free(i8* %q)
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ret void
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}
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