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.
145 lines
5.8 KiB
LLVM
145 lines
5.8 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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%S = type { %S* }
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; Inlining should nuke the invoke (and any inlined calls) here even with
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; argument promotion running along with it.
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define void @zot() personality i32 (...)* @wibble {
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; IS__TUNIT____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@zot
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; IS__TUNIT____-SAME: () #[[ATTR0:[0-9]+]] personality i32 (...)* @wibble {
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; IS__TUNIT____-NEXT: bb:
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; IS__TUNIT____-NEXT: call void @hoge() #[[ATTR2:[0-9]+]]
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; IS__TUNIT____-NEXT: unreachable
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; IS__TUNIT____: bb1:
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; IS__TUNIT____-NEXT: unreachable
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; IS__TUNIT____: bb2:
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; IS__TUNIT____-NEXT: unreachable
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@zot
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; IS__CGSCC____-SAME: () #[[ATTR0:[0-9]+]] personality i32 (...)* @wibble {
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; IS__CGSCC____-NEXT: bb:
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; IS__CGSCC____-NEXT: call void @hoge() #[[ATTR3:[0-9]+]]
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; IS__CGSCC____-NEXT: unreachable
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; IS__CGSCC____: bb1:
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; IS__CGSCC____-NEXT: unreachable
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; IS__CGSCC____: bb2:
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; IS__CGSCC____-NEXT: unreachable
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;
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bb:
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invoke void @hoge()
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to label %bb1 unwind label %bb2
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bb1:
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unreachable
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bb2:
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%tmp = landingpad { i8*, i32 }
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cleanup
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unreachable
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}
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define internal void @hoge() {
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; CHECK: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
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; CHECK-LABEL: define {{[^@]+}}@hoge
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; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: bb:
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; CHECK-NEXT: unreachable
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;
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bb:
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%tmp = call fastcc i8* @spam(i1 (i8*)* @eggs)
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%tmp1 = call fastcc i8* @spam(i1 (i8*)* @barney)
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unreachable
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}
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define internal fastcc i8* @spam(i1 (i8*)* %arg) {
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; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@spam
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; IS__CGSCC____-SAME: () #[[ATTR0]] {
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; IS__CGSCC____-NEXT: bb:
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; IS__CGSCC____-NEXT: unreachable
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;
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bb:
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unreachable
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}
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define internal i1 @eggs(i8* %arg) {
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; IS__CGSCC____-LABEL: define {{[^@]+}}@eggs
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; IS__CGSCC____-SAME: (i8* [[ARG:%.*]]) {
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; IS__CGSCC____-NEXT: bb:
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; IS__CGSCC____-NEXT: [[TMP:%.*]] = call zeroext i1 @barney()
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; IS__CGSCC____-NEXT: unreachable
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;
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bb:
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%tmp = call zeroext i1 @barney(i8* %arg)
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unreachable
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}
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define internal i1 @barney(i8* %arg) {
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@barney
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; IS__CGSCC____-SAME: () #[[ATTR1:[0-9]+]] {
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; IS__CGSCC____-NEXT: bb:
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; IS__CGSCC____-NEXT: ret i1 undef
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;
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bb:
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ret i1 undef
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}
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define i32 @test_inf_promote_caller(i32 %arg) {
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; IS__TUNIT____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test_inf_promote_caller
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; IS__TUNIT____-SAME: (i32 [[ARG:%.*]]) #[[ATTR1:[0-9]+]] {
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; IS__TUNIT____-NEXT: bb:
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; IS__TUNIT____-NEXT: ret i32 0
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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 {{[^@]+}}@test_inf_promote_caller
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; IS__CGSCC____-SAME: (i32 [[ARG:%.*]]) #[[ATTR1]] {
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; IS__CGSCC____-NEXT: bb:
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; IS__CGSCC____-NEXT: [[TMP:%.*]] = alloca [[S:%.*]], align 8
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; IS__CGSCC____-NEXT: [[TMP1:%.*]] = alloca [[S]], align 8
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; IS__CGSCC____-NEXT: ret i32 0
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;
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bb:
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%tmp = alloca %S
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%tmp1 = alloca %S
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%tmp2 = call i32 @test_inf_promote_callee(%S* %tmp, %S* %tmp1)
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ret i32 0
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}
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define internal i32 @test_inf_promote_callee(%S* %arg, %S* %arg1) {
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; IS__CGSCC____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test_inf_promote_callee
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; IS__CGSCC____-SAME: () #[[ATTR2:[0-9]+]] {
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; IS__CGSCC____-NEXT: bb:
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; IS__CGSCC____-NEXT: ret i32 undef
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;
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bb:
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%tmp = getelementptr %S, %S* %arg1, i32 0, i32 0
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%tmp2 = load %S*, %S** %tmp
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%tmp3 = getelementptr %S, %S* %arg, i32 0, i32 0
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%tmp4 = load %S*, %S** %tmp3
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%tmp5 = call i32 @test_inf_promote_callee(%S* %tmp4, %S* %tmp2)
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ret i32 0
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}
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declare i32 @wibble(...)
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;.
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; IS__TUNIT____: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
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; IS__TUNIT____: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
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; IS__TUNIT____: attributes #[[ATTR2]] = { noreturn nounwind readnone }
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;.
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; IS__CGSCC____: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
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; IS__CGSCC____: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
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; IS__CGSCC____: attributes #[[ATTR2]] = { nofree nosync nounwind readnone willreturn }
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; IS__CGSCC____: attributes #[[ATTR3]] = { noreturn nounwind readnone }
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;.
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