57d57b1afd
With opaque pointers, we cannot use the pointer element type to determine the LocationSize for the AA query. Instead, -aa-eval tests are now required to have an explicit load or store for any pointer they want to compute alias results for, and the load/store types are used to determine the location size. This may affect ordering of results, and sorting within one result, as the type is not considered part of the sorted string anymore. To somewhat minimize the churn, printing still uses faux typed pointer notation.
151 lines
5.0 KiB
LLVM
151 lines
5.0 KiB
LLVM
; RUN: opt -aa-pipeline=basic-aa -print-all-alias-modref-info -passes=aa-eval < %s 2>&1 | FileCheck %s
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; RUN: opt -aa-pipeline=basic-aa -print-all-alias-modref-info -passes=aa-eval -use-dereferenceable-at-point-semantics=1 < %s 2>&1 | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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@G = global i32 0, align 4
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define i64 @global_and_deref_arg_1(i64* dereferenceable(8) %arg) nofree nosync {
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; CHECK: Function: global_and_deref_arg_1: 2 pointers, 0 call sites
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; CHECK-NEXT: NoAlias: i64* %arg, i32* @G
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bb:
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store i64 1, i64* %arg, align 8
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store i32 0, i32* @G, align 4
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%tmp = load i64, i64* %arg, align 8
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ret i64 %tmp
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}
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define i32 @global_and_deref_arg_2(i32* dereferenceable(8) %arg) nofree nosync {
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; CHECK: Function: global_and_deref_arg_2: 2 pointers, 0 call sites
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; CHECK-NEXT: NoAlias: i32* %arg, i32* @G
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bb:
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store i32 1, i32* %arg, align 8
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store i32 0, i32* @G, align 4
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%tmp = load i32, i32* %arg, align 8
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ret i32 %tmp
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}
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define i32 @byval_and_deref_arg_1(i32* byval(i32) %obj, i64* dereferenceable(8) %arg) nofree nosync {
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; CHECK: Function: byval_and_deref_arg_1: 2 pointers, 0 call sites
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; CHECK-NEXT: NoAlias: i64* %arg, i32* %obj
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bb:
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store i32 1, i32* %obj, align 4
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store i64 0, i64* %arg, align 8
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%tmp = load i32, i32* %obj, align 4
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ret i32 %tmp
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}
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define i32 @byval_and_deref_arg_2(i32* byval(i32) %obj, i32* dereferenceable(8) %arg) nofree nosync {
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; CHECK: Function: byval_and_deref_arg_2: 2 pointers, 0 call sites
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; CHECK-NEXT: NoAlias: i32* %arg, i32* %obj
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bb:
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store i32 1, i32* %obj, align 4
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store i32 0, i32* %arg, align 8
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%tmp = load i32, i32* %obj, align 4
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ret i32 %tmp
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}
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declare dereferenceable(8) i32* @get_i32_deref8()
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declare dereferenceable(8) i64* @get_i64_deref8()
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declare void @unknown(i32*)
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define i32 @local_and_deref_ret_1() {
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; CHECK: Function: local_and_deref_ret_1: 2 pointers, 2 call sites
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; CHECK-NEXT: NoAlias: i32* %obj, i64* %ret
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bb:
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%obj = alloca i32
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call void @unknown(i32* %obj)
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%ret = call dereferenceable(8) i64* @get_i64_deref8()
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store i32 1, i32* %obj, align 4
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store i64 0, i64* %ret, align 8
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%tmp = load i32, i32* %obj, align 4
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ret i32 %tmp
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}
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define i32 @local_and_deref_ret_2() {
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; CHECK: Function: local_and_deref_ret_2: 2 pointers, 2 call sites
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; CHECK-NEXT: NoAlias: i32* %obj, i32* %ret
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bb:
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%obj = alloca i32
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call void @unknown(i32* %obj)
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%ret = call dereferenceable(8) i32* @get_i32_deref8()
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store i32 1, i32* %obj, align 4
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store i32 0, i32* %ret, align 8
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%tmp = load i32, i32* %obj, align 4
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ret i32 %tmp
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}
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; Baseline tests, same as above but with 2 instead of 8 dereferenceable bytes.
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define i64 @global_and_deref_arg_non_deref_1(i64* dereferenceable(2) %arg) nofree nosync {
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; CHECK: Function: global_and_deref_arg_non_deref_1: 2 pointers, 0 call sites
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; CHECK-NEXT: NoAlias: i64* %arg, i32* @G
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bb:
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store i64 1, i64* %arg, align 8
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store i32 0, i32* @G, align 4
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%tmp = load i64, i64* %arg, align 8
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ret i64 %tmp
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}
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define i32 @global_and_deref_arg_non_deref_2(i32* dereferenceable(2) %arg) nofree nosync {
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; CHECK: Function: global_and_deref_arg_non_deref_2: 2 pointers, 0 call sites
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; Different result than above (see @global_and_deref_arg_2).
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; CHECK-NEXT: MayAlias: i32* %arg, i32* @G
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bb:
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store i32 1, i32* %arg, align 8
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store i32 0, i32* @G, align 4
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%tmp = load i32, i32* %arg, align 8
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ret i32 %tmp
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}
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define i32 @byval_and_deref_arg_non_deref_1(i32* byval(i32) %obj, i64* dereferenceable(2) %arg) nofree nosync {
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; CHECK: Function: byval_and_deref_arg_non_deref_1: 2 pointers, 0 call sites
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; CHECK-NEXT: NoAlias: i64* %arg, i32* %obj
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bb:
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store i32 1, i32* %obj, align 4
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store i64 0, i64* %arg, align 8
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%tmp = load i32, i32* %obj, align 4
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ret i32 %tmp
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}
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define i32 @byval_and_deref_arg_non_deref_2(i32* byval(i32) %obj, i32* dereferenceable(2) %arg) nofree nosync {
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; CHECK: Function: byval_and_deref_arg_non_deref_2: 2 pointers, 0 call sites
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; CHECK-NEXT: NoAlias: i32* %arg, i32* %obj
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bb:
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store i32 1, i32* %obj, align 4
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store i32 0, i32* %arg, align 8
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%tmp = load i32, i32* %obj, align 4
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ret i32 %tmp
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}
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declare dereferenceable(2) i32* @get_i32_deref2()
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declare dereferenceable(2) i64* @get_i64_deref2()
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define i32 @local_and_deref_ret_non_deref_1() {
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; CHECK: Function: local_and_deref_ret_non_deref_1: 2 pointers, 2 call sites
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; CHECK-NEXT: NoAlias: i32* %obj, i64* %ret
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bb:
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%obj = alloca i32
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call void @unknown(i32* %obj)
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%ret = call dereferenceable(2) i64* @get_i64_deref2()
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store i32 1, i32* %obj, align 4
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store i64 0, i64* %ret, align 8
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%tmp = load i32, i32* %obj, align 4
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ret i32 %tmp
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}
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define i32 @local_and_deref_ret_non_deref_2() {
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; CHECK: Function: local_and_deref_ret_non_deref_2: 2 pointers, 2 call sites
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; Different result than above (see @local_and_deref_ret_2).
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; CHECK-NEXT: MayAlias: i32* %obj, i32* %ret
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bb:
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%obj = alloca i32
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call void @unknown(i32* %obj)
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%ret = call dereferenceable(2) i32* @get_i32_deref2()
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store i32 1, i32* %obj, align 4
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store i32 0, i32* %ret, align 8
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%tmp = load i32, i32* %obj, align 4
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ret i32 %tmp
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}
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