shylie/llvm-project
1
0
Fork 0
Code Issues Pull Requests Actions 6 Packages Projects Releases Wiki Activity
llvm-project/llvm/test/Transforms/Inline/noalias-calls2.ll
Nikita Popov e68b12c99e [Inline] Don't add noalias metadata to inaccessiblememonly calls 
It will not do anything useful for them, as we already know that
they don't modref with any accessible memory.

In particular, this prevents noalias metadata from being placed
on noalias.scope.decl intrinsics. This reduces the amount of
metadata needed, and makes it more likely that unnecessary decls
can be eliminated.
2021-04-17 14:56:13 +02:00

163 lines
8.2 KiB
LLVM
Raw Blame History

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
; RUN: opt -basic-aa -inline -enable-noalias-to-md-conversion -S < %s | FileCheck %s
; RUN: opt -aa-pipeline=basic-aa -passes=inline -enable-noalias-to-md-conversion -S < %s | FileCheck %s
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare void @llvm.experimental.noalias.scope.decl(metadata) #0
define void @caller_equals_callee(i32* noalias %p0, i32* noalias %p1, i32 %cnt) {
; CHECK-LABEL: define {{[^@]+}}@caller_equals_callee
; CHECK-SAME: (i32* noalias [[P0:%.*]], i32* noalias [[P1:%.*]], i32 [[CNT:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i32, i32* [[P0]], i64 2
; CHECK-NEXT: [[ADD_PTR1:%.*]] = getelementptr inbounds i32, i32* [[P1]], i64 2
; CHECK-NEXT: tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
; CHECK-NEXT: tail call void @llvm.experimental.noalias.scope.decl(metadata !3)
; CHECK-NEXT: store i32 10, i32* [[ADD_PTR]], align 4, !alias.scope !0, !noalias !3
; CHECK-NEXT: store i32 20, i32* [[ADD_PTR1]], align 4, !alias.scope !3, !noalias !0
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CNT]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: store i32 11, i32* [[P0]], align 4
; CHECK-NEXT: br label [[IF_END:%.*]]
; CHECK: if.else:
; CHECK-NEXT: [[ADD_PTR2:%.*]] = getelementptr inbounds i32, i32* [[P1]], i64 1
; CHECK-NEXT: [[ADD_PTR3:%.*]] = getelementptr inbounds i32, i32* [[P0]], i64 1
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !5)
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !8)
; CHECK-NEXT: [[ADD_PTR_I:%.*]] = getelementptr inbounds i32, i32* [[ADD_PTR2]], i64 2
; CHECK-NEXT: [[ADD_PTR1_I:%.*]] = getelementptr inbounds i32, i32* [[ADD_PTR3]], i64 2
; CHECK-NEXT: tail call void @llvm.experimental.noalias.scope.decl(metadata !10)
; CHECK-NEXT: tail call void @llvm.experimental.noalias.scope.decl(metadata !13)
; CHECK-NEXT: store i32 10, i32* [[ADD_PTR_I]], align 4, !alias.scope !15, !noalias !16
; CHECK-NEXT: store i32 20, i32* [[ADD_PTR1_I]], align 4, !alias.scope !16, !noalias !15
; CHECK-NEXT: store i32 11, i32* [[ADD_PTR2]], align 4, !alias.scope !5, !noalias !8
; CHECK-NEXT: store i32 12, i32* [[P1]], align 4
; CHECK-NEXT: br label [[IF_END]]
; CHECK: if.end:
; CHECK-NEXT: ret void
;
entry:
%add.ptr = getelementptr inbounds i32, i32* %p0, i64 2
%add.ptr1 = getelementptr inbounds i32, i32* %p1, i64 2
tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
tail call void @llvm.experimental.noalias.scope.decl(metadata !3)
store i32 10, i32* %add.ptr, align 4, !alias.scope !0, !noalias !3
store i32 20, i32* %add.ptr1, align 4, !alias.scope !3, !noalias !0
%cmp = icmp eq i32 %cnt, 0
br i1 %cmp, label %if.then, label %if.else
if.then: ; preds = %entry
store i32 11, i32* %p0, align 4
br label %if.end
if.else: ; preds = %entry
%add.ptr2 = getelementptr inbounds i32, i32* %p1, i64 1
%add.ptr3 = getelementptr inbounds i32, i32* %p0, i64 1
tail call void @caller_equals_callee(i32* nonnull %add.ptr2, i32* nonnull %add.ptr3, i32 0)
store i32 12, i32* %p1, align 4
br label %if.end
if.end: ; preds = %if.else, %if.then
ret void
}
define void @test01(i32* noalias %p0, i32* noalias %p1, i32 %cnt) {
; CHECK-LABEL: define {{[^@]+}}@test01
; CHECK-SAME: (i32* noalias [[P0:%.*]], i32* noalias [[P1:%.*]], i32 [[CNT:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: store i32 13, i32* [[P0]], align 4
; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i32, i32* [[P0]], i64 1
; CHECK-NEXT: [[ADD_PTR1:%.*]] = getelementptr inbounds i32, i32* [[P1]], i64 1
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !17)
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !20)
; CHECK-NEXT: [[ADD_PTR_I:%.*]] = getelementptr inbounds i32, i32* [[ADD_PTR]], i64 2
; CHECK-NEXT: [[ADD_PTR1_I:%.*]] = getelementptr inbounds i32, i32* [[ADD_PTR1]], i64 2
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !22)
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !25)
; CHECK-NEXT: store i32 10, i32* [[ADD_PTR_I]], align 4, !alias.scope !27, !noalias !28
; CHECK-NEXT: store i32 20, i32* [[ADD_PTR1_I]], align 4, !alias.scope !28, !noalias !27
; CHECK-NEXT: [[CMP_I:%.*]] = icmp eq i32 [[CNT]], 0
; CHECK-NEXT: br i1 [[CMP_I]], label [[IF_THEN_I:%.*]], label [[IF_ELSE_I:%.*]]
; CHECK: if.then.i:
; CHECK-NEXT: store i32 11, i32* [[ADD_PTR]], align 4, !alias.scope !17, !noalias !20
; CHECK-NEXT: br label [[CALLER_EQUALS_CALLEE_EXIT:%.*]]
; CHECK: if.else.i:
; CHECK-NEXT: [[ADD_PTR2_I:%.*]] = getelementptr inbounds i32, i32* [[ADD_PTR1]], i64 1
; CHECK-NEXT: [[ADD_PTR3_I:%.*]] = getelementptr inbounds i32, i32* [[ADD_PTR]], i64 1
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !29)
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !32)
; CHECK-NEXT: [[ADD_PTR_I_I:%.*]] = getelementptr inbounds i32, i32* [[ADD_PTR2_I]], i64 2
; CHECK-NEXT: [[ADD_PTR1_I_I:%.*]] = getelementptr inbounds i32, i32* [[ADD_PTR3_I]], i64 2
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !34)
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !37)
; CHECK-NEXT: store i32 10, i32* [[ADD_PTR_I_I]], align 4, !alias.scope !39, !noalias !40
; CHECK-NEXT: store i32 20, i32* [[ADD_PTR1_I_I]], align 4, !alias.scope !40, !noalias !39
; CHECK-NEXT: store i32 11, i32* [[ADD_PTR2_I]], align 4, !alias.scope !41, !noalias !42
; CHECK-NEXT: store i32 12, i32* [[ADD_PTR1]], align 4, !alias.scope !20, !noalias !17
; CHECK-NEXT: br label [[CALLER_EQUALS_CALLEE_EXIT]]
; CHECK: caller_equals_callee.exit:
; CHECK-NEXT: ret void
;
entry:
store i32 13, i32* %p0, align 4
%add.ptr = getelementptr inbounds i32, i32* %p0, i64 1
%add.ptr1 = getelementptr inbounds i32, i32* %p1, i64 1
call void @caller_equals_callee(i32* nonnull %add.ptr, i32* nonnull %add.ptr1, i32 %cnt)
ret void
}
attributes #0 = { inaccessiblememonly nofree nosync nounwind willreturn }
!0 = !{!1}
!1 = distinct !{!1, !2, !"do_store: %p0"}
!2 = distinct !{!2, !"do_store"}
!3 = !{!4}
!4 = distinct !{!4, !2, !"do_store: %p1"}
; CHECK: !0 = !{!1}
; CHECK: !1 = distinct !{!1, !2, !"do_store: %p0"}
; CHECK: !2 = distinct !{!2, !"do_store"}
; CHECK: !3 = !{!4}
; CHECK: !4 = distinct !{!4, !2, !"do_store: %p1"}
; CHECK: !5 = !{!6}
; CHECK: !6 = distinct !{!6, !7, !"caller_equals_callee: %p0"}
; CHECK: !7 = distinct !{!7, !"caller_equals_callee"}
; CHECK: !8 = !{!9}
; CHECK: !9 = distinct !{!9, !7, !"caller_equals_callee: %p1"}
; CHECK: !10 = !{!11}
; CHECK: !11 = distinct !{!11, !12, !"do_store: %p0"}
; CHECK: !12 = distinct !{!12, !"do_store"}
; CHECK: !13 = !{!14}
; CHECK: !14 = distinct !{!14, !12, !"do_store: %p1"}
; CHECK: !15 = !{!11, !6}
; CHECK: !16 = !{!14, !9}
; CHECK: !17 = !{!18}
; CHECK: !18 = distinct !{!18, !19, !"caller_equals_callee: %p0"}
; CHECK: !19 = distinct !{!19, !"caller_equals_callee"}
; CHECK: !20 = !{!21}
; CHECK: !21 = distinct !{!21, !19, !"caller_equals_callee: %p1"}
; CHECK: !22 = !{!23}
; CHECK: !23 = distinct !{!23, !24, !"do_store: %p0"}
; CHECK: !24 = distinct !{!24, !"do_store"}
; CHECK: !25 = !{!26}
; CHECK: !26 = distinct !{!26, !24, !"do_store: %p1"}
; CHECK: !27 = !{!23, !18}
; CHECK: !28 = !{!26, !21}
; CHECK: !29 = !{!30}
; CHECK: !30 = distinct !{!30, !31, !"caller_equals_callee: %p0"}
; CHECK: !31 = distinct !{!31, !"caller_equals_callee"}
; CHECK: !32 = !{!33}
; CHECK: !33 = distinct !{!33, !31, !"caller_equals_callee: %p1"}
; CHECK: !34 = !{!35}
; CHECK: !35 = distinct !{!35, !36, !"do_store: %p0"}
; CHECK: !36 = distinct !{!36, !"do_store"}
; CHECK: !37 = !{!38}
; CHECK: !38 = distinct !{!38, !36, !"do_store: %p1"}
; CHECK: !39 = !{!35, !30, !21}
; CHECK: !40 = !{!38, !33, !18}
; CHECK: !41 = !{!30, !21}
; CHECK: !42 = !{!33, !18}
Reference in New Issue View Git Blame Copy Permalink