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.
59 lines
2.4 KiB
LLVM
59 lines
2.4 KiB
LLVM
; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
|
|
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
|
|
|
|
@G1 = external global i32
|
|
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1)
|
|
declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1)
|
|
declare void @llvm.experimental.deoptimize.void(...)
|
|
declare void @unknown_but_readonly() readonly
|
|
|
|
define void @test1(i8* %p) {
|
|
load i8, i8* %p
|
|
call void(...) @llvm.experimental.deoptimize.void() [ "deopt"() ]
|
|
ret void
|
|
|
|
; CHECK-LABEL: Function: test1:
|
|
; CHECK: Just Ref: Ptr: i8* %p <-> call void (...) @llvm.experimental.deoptimize.isVoid() [ "deopt"() ]
|
|
}
|
|
|
|
; By specification calls with deopt bundles reads through all operands and entire heap.
|
|
; Check that global G1 is reported as Ref by memcpy/memmove calls.
|
|
define i32 @test_memcpy_with_deopt() {
|
|
; CHECK-LABEL: Function: test_memcpy_with_deopt:
|
|
; CHECK: Just Mod: Ptr: i8* %A <-> call void @llvm.memcpy.p0i8.p0i8.i64(i8* %A, i8* %B, i64 -1, i1 false) [ "deopt"() ]
|
|
; CHECK: Just Ref: Ptr: i8* %B <-> call void @llvm.memcpy.p0i8.p0i8.i64(i8* %A, i8* %B, i64 -1, i1 false) [ "deopt"() ]
|
|
; CHECK: Just Ref: Ptr: i32* @G1 <-> call void @llvm.memcpy.p0i8.p0i8.i64(i8* %A, i8* %B, i64 -1, i1 false) [ "deopt"() ]
|
|
|
|
%A = alloca i8
|
|
%B = alloca i8
|
|
load i8, i8* %A
|
|
load i8, i8* %B
|
|
|
|
store i32 2, i32* @G1 ;; Not referenced by semantics of memcpy but still may be read due to "deopt"
|
|
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %A, i8* %B, i64 -1, i1 false) [ "deopt"() ]
|
|
|
|
%C = load i32, i32* @G1
|
|
ret i32 %C
|
|
}
|
|
|
|
define i32 @test_memmove_with_deopt() {
|
|
; CHECK-LABEL: Function: test_memmove_with_deopt:
|
|
; CHECK: Just Mod: Ptr: i8* %A <-> call void @llvm.memmove.p0i8.p0i8.i64(i8* %A, i8* %B, i64 -1, i1 false) [ "deopt"() ]
|
|
; CHECK: Just Ref: Ptr: i8* %B <-> call void @llvm.memmove.p0i8.p0i8.i64(i8* %A, i8* %B, i64 -1, i1 false) [ "deopt"() ]
|
|
; CHECK: Just Ref: Ptr: i32* @G1 <-> call void @llvm.memmove.p0i8.p0i8.i64(i8* %A, i8* %B, i64 -1, i1 false) [ "deopt"() ]
|
|
|
|
%A = alloca i8
|
|
%B = alloca i8
|
|
load i8, i8* %A
|
|
load i8, i8* %B
|
|
|
|
store i32 2, i32* @G1 ;; Not referenced by semantics of memcpy but still may be read due to "deopt"
|
|
|
|
call void @llvm.memmove.p0i8.p0i8.i64(i8* %A, i8* %B, i64 -1, i1 false) [ "deopt"() ]
|
|
|
|
%C = load i32, i32* @G1
|
|
ret i32 %C
|
|
}
|