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.
53 lines
3.3 KiB
LLVM
53 lines
3.3 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=2 -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=2 -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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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc"
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define internal void @add({i32, i32}* %this, i32* sret(i32) %r) {
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;
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; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
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; CHECK-LABEL: define {{[^@]+}}@add
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; CHECK-SAME: ({ i32, i32 }* noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) [[THIS:%.*]], i32* noalias nocapture nofree noundef nonnull writeonly sret(i32) align 4 dereferenceable(4) [[R:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: ret void
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;
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%ap = getelementptr {i32, i32}, {i32, i32}* %this, i32 0, i32 0
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%bp = getelementptr {i32, i32}, {i32, i32}* %this, i32 0, i32 1
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%a = load i32, i32* %ap
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%b = load i32, i32* %bp
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%ab = add i32 %a, %b
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store i32 %ab, i32* %r
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ret void
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}
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define void @f() {
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; IS__TUNIT____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@f
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; IS__TUNIT____-SAME: () #[[ATTR1:[0-9]+]] {
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; IS__TUNIT____-NEXT: [[R:%.*]] = alloca i32, align 4
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; IS__TUNIT____-NEXT: call void @add({ i32, i32 }* noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) undef, i32* noalias nocapture nofree noundef nonnull writeonly sret(i32) align 4 dereferenceable(4) [[R]]) #[[ATTR2:[0-9]+]]
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; IS__TUNIT____-NEXT: ret void
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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 {{[^@]+}}@f
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; IS__CGSCC____-SAME: () #[[ATTR1:[0-9]+]] {
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; IS__CGSCC____-NEXT: ret void
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;
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%r = alloca i32
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%pair = alloca {i32, i32}
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call void @add({i32, i32}* %pair, i32* sret(i32) %r)
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ret void
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}
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;.
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; IS__TUNIT____: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
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; IS__TUNIT____: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
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; IS__TUNIT____: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn writeonly }
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;.
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; IS__CGSCC____: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
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; IS__CGSCC____: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
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;.
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