Johannes Doerfert f3ad8cf00e [Attributor] Cleanup manifest and liveness for CGSCC passes
There was some ad-hoc handling of liveness and manifest to avoid
breaking CGSCC guarantees. Things always slipped through though.
This cleanup will:

1) Prevent us from manifesting any "information" outside the CGSCC.
   This might be too conservative but we need to opt-in to annotation
   not try to avoid some problematic ones.
2) Avoid running any liveness analysis outside the CGSCC. We did have
   some AAIsDeadFunction handling to this end but we need this for all
   AAIsDead classes. The reason is that AAIsDead information is only
   correct if we actually manifest it, since we don't (see point 1) we
   cannot actually derive/use it at all. We are currently trying to
   avoid running any AA updates outside the CGSCC but that seems to
   impact things quite a bit.
3) Assert, don't check, that our modifications (during cleanup) modifies
   only CGSCC functions.
2022-03-11 16:46:02 -06:00

195 lines
12 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
define dso_local i32 @visible(i32* noalias %A, i32* noalias %B) #0 {
; IS__TUNIT____: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
; IS__TUNIT____-LABEL: define {{[^@]+}}@visible
; IS__TUNIT____-SAME: (i32* noalias nocapture nofree readonly align 4 [[A:%.*]], i32* noalias nocapture nofree readonly align 4 [[B:%.*]]) #[[ATTR0:[0-9]+]] {
; IS__TUNIT____-NEXT: entry:
; IS__TUNIT____-NEXT: [[CALL1:%.*]] = call i32 @noalias_args(i32* noalias nocapture nofree readonly align 4 [[A]], i32* noalias nocapture nofree readonly align 4 [[B]]) #[[ATTR3:[0-9]+]]
; IS__TUNIT____-NEXT: [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* noalias nocapture nofree readonly align 4 [[A]], i32* noalias nocapture nofree readonly align 4 [[B]]) #[[ATTR3]]
; IS__TUNIT____-NEXT: [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
; IS__TUNIT____-NEXT: ret i32 [[ADD]]
;
; IS__CGSCC____: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
; IS__CGSCC____-LABEL: define {{[^@]+}}@visible
; IS__CGSCC____-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0:[0-9]+]] {
; IS__CGSCC____-NEXT: entry:
; IS__CGSCC____-NEXT: [[CALL1:%.*]] = call i32 @noalias_args(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR4:[0-9]+]]
; IS__CGSCC____-NEXT: [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR4]]
; IS__CGSCC____-NEXT: [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
; IS__CGSCC____-NEXT: ret i32 [[ADD]]
;
entry:
%call1 = call i32 @noalias_args(i32* %A, i32* %B)
%call2 = call i32 @noalias_args_argmem(i32* %A, i32* %B)
%add = add nsw i32 %call1, %call2
ret i32 %add
}
define private i32 @noalias_args(i32* %A, i32* %B) #0 {
; IS__TUNIT____: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
; IS__TUNIT____-LABEL: define {{[^@]+}}@noalias_args
; IS__TUNIT____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0]] {
; IS__TUNIT____-NEXT: entry:
; IS__TUNIT____-NEXT: [[TMP0:%.*]] = load i32, i32* [[A]], align 4
; IS__TUNIT____-NEXT: [[TMP1:%.*]] = load i32, i32* [[B]], align 4
; IS__TUNIT____-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP0]], [[TMP1]]
; IS__TUNIT____-NEXT: [[CALL:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR3]]
; IS__TUNIT____-NEXT: [[ADD2:%.*]] = add nsw i32 [[ADD]], [[CALL]]
; IS__TUNIT____-NEXT: ret i32 [[ADD2]]
;
; IS__CGSCC____: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
; IS__CGSCC____-LABEL: define {{[^@]+}}@noalias_args
; IS__CGSCC____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0]] {
; IS__CGSCC____-NEXT: entry:
; IS__CGSCC____-NEXT: [[TMP0:%.*]] = load i32, i32* [[A]], align 4
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = load i32, i32* [[B]], align 4
; IS__CGSCC____-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP0]], [[TMP1]]
; IS__CGSCC____-NEXT: [[CALL:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR4]]
; IS__CGSCC____-NEXT: [[ADD2:%.*]] = add nsw i32 [[ADD]], [[CALL]]
; IS__CGSCC____-NEXT: ret i32 [[ADD2]]
;
entry:
%0 = load i32, i32* %A, align 4
%1 = load i32, i32* %B, align 4
%add = add nsw i32 %0, %1
%call = call i32 @noalias_args_argmem(i32* %A, i32* %B)
%add2 = add nsw i32 %add, %call
ret i32 %add2
}
define internal i32 @noalias_args_argmem(i32* %A, i32* %B) #1 {
; CHECK: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
; CHECK-LABEL: define {{[^@]+}}@noalias_args_argmem
; CHECK-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[A]], align 4
; CHECK-NEXT: [[TMP1:%.*]] = load i32, i32* [[B]], align 4
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP0]], [[TMP1]]
; CHECK-NEXT: ret i32 [[ADD]]
;
entry:
%0 = load i32, i32* %A, align 4
%1 = load i32, i32* %B, align 4
%add = add nsw i32 %0, %1
ret i32 %add
}
define dso_local i32 @visible_local(i32* %A) #0 {
; IS__TUNIT____: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable
; IS__TUNIT____-LABEL: define {{[^@]+}}@visible_local
; IS__TUNIT____-SAME: (i32* nocapture nofree readonly [[A:%.*]]) #[[ATTR1:[0-9]+]] {
; IS__TUNIT____-NEXT: entry:
; IS__TUNIT____-NEXT: [[B:%.*]] = alloca i32, align 4
; IS__TUNIT____-NEXT: store i32 5, i32* [[B]], align 4
; IS__TUNIT____-NEXT: [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree readonly align 4 [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR3]]
; IS__TUNIT____-NEXT: [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree readonly align 4 [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR3]]
; IS__TUNIT____-NEXT: [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
; IS__TUNIT____-NEXT: ret i32 [[ADD]]
;
; IS__CGSCC____: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable
; IS__CGSCC____-LABEL: define {{[^@]+}}@visible_local
; IS__CGSCC____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR1:[0-9]+]] {
; IS__CGSCC____-NEXT: entry:
; IS__CGSCC____-NEXT: [[B:%.*]] = alloca i32, align 4
; IS__CGSCC____-NEXT: store i32 5, i32* [[B]], align 4
; IS__CGSCC____-NEXT: [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR4]]
; IS__CGSCC____-NEXT: [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]])
; IS__CGSCC____-NEXT: [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
; IS__CGSCC____-NEXT: ret i32 [[ADD]]
;
entry:
%B = alloca i32, align 4
store i32 5, i32* %B, align 4
%call1 = call i32 @noalias_args(i32* %A, i32* nonnull %B)
%call2 = call i32 @noalias_args_argmem(i32* %A, i32* nonnull %B)
%add = add nsw i32 %call1, %call2
ret i32 %add
}
define internal i32 @noalias_args_argmem_ro(i32* %A, i32* %B) #1 {
; IS__CGSCC____: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
; IS__CGSCC____-LABEL: define {{[^@]+}}@noalias_args_argmem_ro
; IS__CGSCC____-SAME: () #[[ATTR2:[0-9]+]] {
; IS__CGSCC____-NEXT: ret i32 10
;
%t0 = load i32, i32* %A, align 4
%t1 = load i32, i32* %B, align 4
%add = add nsw i32 %t0, %t1
ret i32 %add
}
define i32 @visible_local_2() {
; IS__TUNIT____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__TUNIT____-LABEL: define {{[^@]+}}@visible_local_2
; IS__TUNIT____-SAME: () #[[ATTR2:[0-9]+]] {
; IS__TUNIT____-NEXT: [[B:%.*]] = alloca i32, align 4
; IS__TUNIT____-NEXT: ret i32 10
;
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@visible_local_2
; IS__CGSCC____-SAME: () #[[ATTR3:[0-9]+]] {
; IS__CGSCC____-NEXT: [[B:%.*]] = alloca i32, align 4
; IS__CGSCC____-NEXT: ret i32 10
;
%B = alloca i32, align 4
store i32 5, i32* %B, align 4
%call = call i32 @noalias_args_argmem_ro(i32* %B, i32* %B)
ret i32 %call
}
define internal i32 @noalias_args_argmem_rn(i32* %A, i32* %B) #1 {
; CHECK: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable
; CHECK-LABEL: define {{[^@]+}}@noalias_args_argmem_rn
; CHECK-SAME: (i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR1:[0-9]+]] {
; CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[B]], align 4
; CHECK-NEXT: ret i32 [[T0]]
;
%t0 = load i32, i32* %B, align 4
store i32 0, i32* %B
ret i32 %t0
}
define i32 @visible_local_3() {
; IS__TUNIT____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__TUNIT____-LABEL: define {{[^@]+}}@visible_local_3
; IS__TUNIT____-SAME: () #[[ATTR2]] {
; IS__TUNIT____-NEXT: [[B:%.*]] = alloca i32, align 4
; IS__TUNIT____-NEXT: store i32 5, i32* [[B]], align 4
; IS__TUNIT____-NEXT: [[CALL:%.*]] = call i32 @noalias_args_argmem_rn(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B]]) #[[ATTR4:[0-9]+]]
; IS__TUNIT____-NEXT: ret i32 [[CALL]]
;
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@visible_local_3
; IS__CGSCC____-SAME: () #[[ATTR3]] {
; IS__CGSCC____-NEXT: [[B:%.*]] = alloca i32, align 4
; IS__CGSCC____-NEXT: store i32 5, i32* [[B]], align 4
; IS__CGSCC____-NEXT: ret i32 5
;
%B = alloca i32, align 4
store i32 5, i32* %B, align 4
%call = call i32 @noalias_args_argmem_rn(i32* %B, i32* %B)
ret i32 %call
}
attributes #0 = { noinline nounwind uwtable willreturn }
attributes #1 = { argmemonly noinline nounwind uwtable willreturn}
;.
; IS__TUNIT____: attributes #[[ATTR0]] = { argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable }
; IS__TUNIT____: attributes #[[ATTR1]] = { argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable }
; IS__TUNIT____: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
; IS__TUNIT____: attributes #[[ATTR3]] = { nofree nosync nounwind readonly }
; IS__TUNIT____: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn }
;.
; IS__CGSCC____: attributes #[[ATTR0]] = { argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable }
; IS__CGSCC____: attributes #[[ATTR1]] = { argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable }
; IS__CGSCC____: attributes #[[ATTR2]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
; IS__CGSCC____: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind readnone willreturn }
; IS__CGSCC____: attributes #[[ATTR4]] = { readonly }
;.