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.
196 lines
6.4 KiB
LLVM
196 lines
6.4 KiB
LLVM
; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
|
|
|
|
; CHECK: Function: t1
|
|
; CHECK: NoAlias: i32* %gep1, i32* %gep2
|
|
define void @t1([8 x i32]* %p, i32 %addend, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%add = add nsw nuw i32 %addend, %knownnonzero
|
|
%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 2, i32 %addend
|
|
%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 2, i32 %add
|
|
load i32, i32* %gep1
|
|
load i32, i32* %gep2
|
|
ret void
|
|
}
|
|
|
|
; CHECK: Function: t2
|
|
; CHECK: MayAlias: i32* %gep1, i32* %gep2
|
|
define void @t2([8 x i32]* %p, i32 %addend, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%add = add nsw nuw i32 %addend, %knownnonzero
|
|
%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 1, i32 %addend
|
|
%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 0, i32 %add
|
|
load i32, i32* %gep1
|
|
load i32, i32* %gep2
|
|
ret void
|
|
}
|
|
|
|
; CHECK: Function: t3
|
|
; CHECK: MustAlias: i32* %gep1, i32* %gep2
|
|
define void @t3([8 x i32]* %p, i32 %addend, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%add = add nsw nuw i32 %addend, %knownnonzero
|
|
%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 0, i32 %add
|
|
%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 0, i32 %add
|
|
load i32, i32* %gep1
|
|
load i32, i32* %gep2
|
|
ret void
|
|
}
|
|
|
|
; CHECK: Function: t4
|
|
; CHECK: MayAlias: i32* %gep1, i32* %gep2
|
|
define void @t4([8 x i32]* %p, i32 %addend, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%add = add nsw nuw i32 %addend, %knownnonzero
|
|
%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 1, i32 %addend
|
|
%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 %add, i32 %add
|
|
load i32, i32* %gep1
|
|
load i32, i32* %gep2
|
|
ret void
|
|
}
|
|
|
|
; CHECK: Function: t5
|
|
; CHECK: MayAlias: i64* %bc, i32* %gep2
|
|
define void @t5([8 x i32]* %p, i32 %addend, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%add = add nsw nuw i32 %addend, %knownnonzero
|
|
%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 2, i32 %addend
|
|
%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 2, i32 %add
|
|
%bc = bitcast i32* %gep1 to i64*
|
|
load i32, i32* %gep2
|
|
load i64, i64* %bc
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: Function: add_non_zero_simple
|
|
; CHECK: NoAlias: i32* %gep1, i32* %gep2
|
|
define void @add_non_zero_simple(i32* %p, i32 %addend, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%add = add i32 %addend, %knownnonzero
|
|
%gep1 = getelementptr i32, i32* %p, i32 %addend
|
|
%gep2 = getelementptr i32, i32* %p, i32 %add
|
|
load i32, i32* %gep1
|
|
load i32, i32* %gep2
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: Function: add_non_zero_different_scales
|
|
; CHECK: MayAlias: i32* %gep1, i16* %gep2
|
|
define void @add_non_zero_different_scales(i32* %p, i32 %addend, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%add = add i32 %addend, %knownnonzero
|
|
%p16 = bitcast i32* %p to i16*
|
|
%gep1 = getelementptr i32, i32* %p, i32 %addend
|
|
%gep2 = getelementptr i16, i16* %p16, i32 %add
|
|
load i32, i32* %gep1
|
|
load i16, i16* %gep2
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: Function: add_non_zero_different_sizes
|
|
; CHECK: NoAlias: i16* %gep1.16, i32* %gep2
|
|
; CHECK: NoAlias: i32* %gep1, i16* %gep2.16
|
|
; CHECK: NoAlias: i16* %gep1.16, i16* %gep2.16
|
|
; CHECK: MayAlias: i64* %gep1.64, i32* %gep2
|
|
; CHECK: MayAlias: i64* %gep1.64, i16* %gep2.16
|
|
; CHECK: MayAlias: i32* %gep1, i64* %gep2.64
|
|
; CHECK: MayAlias: i16* %gep1.16, i64* %gep2.64
|
|
; CHECK: MayAlias: i64* %gep1.64, i64* %gep2.64
|
|
define void @add_non_zero_different_sizes(i32* %p, i32 %addend, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%add = add i32 %addend, %knownnonzero
|
|
%gep1 = getelementptr i32, i32* %p, i32 %addend
|
|
%gep2 = getelementptr i32, i32* %p, i32 %add
|
|
%gep1.16 = bitcast i32* %gep1 to i16*
|
|
%gep2.16 = bitcast i32* %gep2 to i16*
|
|
%gep1.64 = bitcast i32* %gep1 to i64*
|
|
%gep2.64 = bitcast i32* %gep2 to i64*
|
|
load i32, i32* %gep1
|
|
load i32, i32* %gep2
|
|
load i16, i16* %gep1.16
|
|
load i16, i16* %gep2.16
|
|
load i64, i64* %gep1.64
|
|
load i64, i64* %gep2.64
|
|
ret void
|
|
}
|
|
|
|
|
|
; CHECK-LABEL: add_non_zero_with_offset
|
|
; MayAlias: i32* %gep1, i32* %gep2
|
|
; NoAlias: i16* %gep1.16, i16* %gep2.16
|
|
define void @add_non_zero_with_offset(i32* %p, i32 %addend, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%add = add i32 %addend, %knownnonzero
|
|
%p.8 = bitcast i32* %p to i8*
|
|
%p.off.8 = getelementptr i8, i8* %p.8, i32 2
|
|
%p.off = bitcast i8* %p.off.8 to i32*
|
|
%gep1 = getelementptr i32, i32* %p.off, i32 %addend
|
|
%gep2 = getelementptr i32, i32* %p, i32 %add
|
|
%gep1.16 = bitcast i32* %gep1 to i16*
|
|
%gep2.16 = bitcast i32* %gep2 to i16*
|
|
load i32, i32* %gep1
|
|
load i32, i32* %gep2
|
|
load i16, i16* %gep1.16
|
|
load i16, i16* %gep2.16
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: Function: add_non_zero_assume
|
|
; CHECK: NoAlias: i32* %gep1, i32* %gep2
|
|
define void @add_non_zero_assume(i32* %p, i32 %addend, i32 %knownnonzero) {
|
|
%cmp = icmp ne i32 %knownnonzero, 0
|
|
call void @llvm.assume(i1 %cmp)
|
|
%add = add i32 %addend, %knownnonzero
|
|
%gep1 = getelementptr i32, i32* %p, i32 %addend
|
|
%gep2 = getelementptr i32, i32* %p, i32 %add
|
|
load i32, i32* %gep1
|
|
load i32, i32* %gep2
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: non_zero_index_simple
|
|
; CHECK: NoAlias: i32* %gep, i32* %p
|
|
; CHECK: NoAlias: i16* %gep.16, i32* %p
|
|
; CHECK: MayAlias: i64* %gep.64, i32* %p
|
|
define void @non_zero_index_simple(i32* %p, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%gep = getelementptr i32, i32* %p, i32 %knownnonzero
|
|
%gep.16 = bitcast i32* %gep to i16*
|
|
%gep.64 = bitcast i32* %gep to i64*
|
|
load i32, i32* %p
|
|
load i32, i32* %gep
|
|
load i16, i16* %gep.16
|
|
load i64, i64* %gep.64
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: non_zero_index_with_offset
|
|
; CHECK: MayAlias: i32* %gep, i32* %p
|
|
; CHECK: NoAlias: i16* %gep.16, i32* %p
|
|
define void @non_zero_index_with_offset(i32* %p, i32* %q) {
|
|
%knownnonzero = load i32, i32* %q, !range !0
|
|
%p.8 = bitcast i32* %p to i8*
|
|
%p.off.8 = getelementptr i8, i8* %p.8, i32 2
|
|
%p.off = bitcast i8* %p.off.8 to i32*
|
|
%gep = getelementptr i32, i32* %p.off, i32 %knownnonzero
|
|
%gep.16 = bitcast i32* %gep to i16*
|
|
load i32, i32* %p
|
|
load i32, i32* %gep
|
|
load i16, i16* %gep.16
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: non_zero_index_assume
|
|
; CHECK: NoAlias: i32* %gep, i32* %p
|
|
define void @non_zero_index_assume(i32* %p, i32 %knownnonzero) {
|
|
%cmp = icmp ne i32 %knownnonzero, 0
|
|
call void @llvm.assume(i1 %cmp)
|
|
%gep = getelementptr i32, i32* %p, i32 %knownnonzero
|
|
load i32, i32* %p
|
|
load i32, i32* %gep
|
|
ret void
|
|
}
|
|
|
|
declare void @llvm.assume(i1)
|
|
|
|
!0 = !{ i32 1, i32 0 }
|