f3ad8cf00e
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.
93 lines
4.0 KiB
LLVM
93 lines
4.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
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; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=4 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=4 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
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; 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
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; 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
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%"a" = type { i64 }
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%"b" = type { i8 }
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define hidden i64 @f1() align 2 {
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; IS__TUNIT____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@f1
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; IS__TUNIT____-SAME: () #[[ATTR0:[0-9]+]] align 2 {
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; IS__TUNIT____-NEXT: entry:
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; IS__TUNIT____-NEXT: ret i64 undef
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@f1
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; IS__CGSCC____-SAME: () #[[ATTR0:[0-9]+]] align 2 {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: [[REF_TMP:%.*]] = alloca [[A:%.*]], align 8
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; IS__CGSCC____-NEXT: ret i64 undef
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;
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entry:
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%ref.tmp = alloca %"a", align 8
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%call2 = call i64 @f2(%"a"* %ref.tmp)
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ret i64 %call2
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}
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define internal i64 @f2(%"a"* %this) align 2 {
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@f2
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; IS__CGSCC____-SAME: () #[[ATTR0]] align 2 {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: ret i64 undef
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;
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entry:
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%this.addr = alloca %"a"*, align 8
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store %"a"* %this, %"a"** %this.addr, align 8
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%this1 = load %"a"*, %"a"** %this.addr, align 8
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%0 = bitcast %"a"* %this1 to %"b"*
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call void @f3(%"b"* %0)
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ret i64 undef
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}
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define internal void @f3(%"b"* %this) align 2 {
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@f3
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; IS__CGSCC____-SAME: () #[[ATTR0]] align 2 {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: ret void
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;
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entry:
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%this.addr = alloca %"b"*, align 8
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store %"b"* %this, %"b"** %this.addr, align 8
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%this1 = load %"b"*, %"b"** %this.addr, align 8
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%call = call i1 @f4(%"b"* %this1)
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ret void
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}
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define internal i1 @f4(%"b"* %this) align 2 {
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@f4
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; IS__CGSCC____-SAME: () #[[ATTR0]] align 2 {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: ret i1 undef
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;
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entry:
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%this.addr = alloca %"b"*, align 8
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store %"b"* %this, %"b"** %this.addr, align 8
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%this1 = load %"b"*, %"b"** %this.addr, align 8
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%call = call %"a"* @f5(%"b"* %this1)
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ret i1 undef
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}
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define internal %"a"* @f5(%"b"* %this) align 2 {
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@f5
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; IS__CGSCC____-SAME: () #[[ATTR0]] align 2 {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: ret %a* undef
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;
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entry:
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%this.addr = alloca %"b"*, align 8
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store %"b"* %this, %"b"** %this.addr, align 8
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%this1 = load %"b"*, %"b"** %this.addr, align 8
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%0 = bitcast %"b"* %this1 to %"a"*
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ret %"a"* %0
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}
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;.
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; CHECK: attributes #[[ATTR0:[0-9]+]] = { nofree norecurse nosync nounwind readnone willreturn }
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;.
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