e87f10a771
When we run the CGSCC pass we should only invest time on the SCC. We can initialize AAs with information from the module slice but we should not update those AAs. We make an exception for are call site of the SCC as they are helpful providing information for the SCC. Minor modifications to pointer privatization allow us to perform it even in the CGSCC pass, similar to ArgumentPromotion.
124 lines
7.5 KiB
LLVM
124 lines
7.5 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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;
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; #include <pthread.h>
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;
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; void *GlobalVPtr;
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;
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; static void *foo(void *arg) { return arg; }
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; static void *bar(void *arg) { return arg; }
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;
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; int main() {
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; pthread_t thread;
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; pthread_create(&thread, NULL, foo, NULL);
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; pthread_create(&thread, NULL, bar, &GlobalVPtr);
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; return 0;
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; }
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;
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; Verify the constant values NULL and &GlobalVPtr are propagated into foo and
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; bar, respectively.
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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%union.pthread_attr_t = type { i64, [48 x i8] }
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@GlobalVPtr = common dso_local global i8* null, align 8
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; FIXME: nocapture & noalias for @GlobalVPtr in %call1
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; FIXME: nocapture & noalias for %alloc2 in %call3
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;.
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; CHECK: @[[GLOBALVPTR:[a-zA-Z0-9_$"\\.-]+]] = common dso_local global i8* null, align 8
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;.
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define dso_local i32 @main() {
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; IS__TUNIT____-LABEL: define {{[^@]+}}@main() {
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; IS__TUNIT____-NEXT: entry:
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; IS__TUNIT____-NEXT: [[ALLOC1:%.*]] = alloca i8, align 8
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; IS__TUNIT____-NEXT: [[ALLOC2:%.*]] = alloca i8, align 8
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; IS__TUNIT____-NEXT: [[THREAD:%.*]] = alloca i64, align 8
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; IS__TUNIT____-NEXT: [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 4294967296 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree readnone align 4294967296 undef)
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; IS__TUNIT____-NEXT: [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 4294967296 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) undef)
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; IS__TUNIT____-NEXT: [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 4294967296 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
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; IS__TUNIT____-NEXT: [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 4294967296 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[ALLOC2]])
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; IS__TUNIT____-NEXT: ret i32 0
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;
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; IS__CGSCC____-LABEL: define {{[^@]+}}@main() {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: [[ALLOC1:%.*]] = alloca i8, align 8
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; IS__CGSCC____-NEXT: [[ALLOC2:%.*]] = alloca i8, align 8
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; IS__CGSCC____-NEXT: [[THREAD:%.*]] = alloca i64, align 8
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; IS__CGSCC____-NEXT: [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 4294967296 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree noundef readnone align 4294967296 null)
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; IS__CGSCC____-NEXT: [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 4294967296 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(8) bitcast (i8** @GlobalVPtr to i8*))
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; IS__CGSCC____-NEXT: [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 4294967296 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
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; IS__CGSCC____-NEXT: [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 4294967296 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC2]])
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; IS__CGSCC____-NEXT: ret i32 0
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;
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entry:
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%alloc1 = alloca i8, align 8
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%alloc2 = alloca i8, align 8
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%thread = alloca i64, align 8
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%call = call i32 @pthread_create(i64* nonnull %thread, %union.pthread_attr_t* null, i8* (i8*)* nonnull @foo, i8* null)
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%call1 = call i32 @pthread_create(i64* nonnull %thread, %union.pthread_attr_t* null, i8* (i8*)* nonnull @bar, i8* bitcast (i8** @GlobalVPtr to i8*))
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%call2 = call i32 @pthread_create(i64* nonnull %thread, %union.pthread_attr_t* null, i8* (i8*)* nonnull @baz, i8* nocapture %alloc1)
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%call3 = call i32 @pthread_create(i64* nonnull %thread, %union.pthread_attr_t* null, i8* (i8*)* nonnull @buz, i8* %alloc2)
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ret i32 0
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}
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declare !callback !0 dso_local i32 @pthread_create(i64*, %union.pthread_attr_t*, i8* (i8*)*, i8*)
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define internal i8* @foo(i8* %arg) {
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; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; CHECK-LABEL: define {{[^@]+}}@foo
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; CHECK-SAME: (i8* noalias nocapture nofree readnone align 4294967296 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i8* null
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;
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entry:
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ret i8* %arg
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}
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define internal i8* @bar(i8* %arg) {
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; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; CHECK-LABEL: define {{[^@]+}}@bar
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; CHECK-SAME: (i8* noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) [[ARG:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i8* bitcast (i8** @GlobalVPtr to i8*)
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;
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entry:
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ret i8* %arg
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}
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define internal i8* @baz(i8* %arg) {
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; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; CHECK-LABEL: define {{[^@]+}}@baz
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; CHECK-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i8* [[ARG]]
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;
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entry:
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ret i8* %arg
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}
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define internal i8* @buz(i8* %arg) {
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; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; CHECK-LABEL: define {{[^@]+}}@buz
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; CHECK-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i8* [[ARG]]
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;
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entry:
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ret i8* %arg
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}
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!1 = !{i64 2, i64 3, i1 false}
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!0 = !{!1}
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;.
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; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
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;.
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; CHECK: [[META0:![0-9]+]] = !{!1}
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; CHECK: [[META1:![0-9]+]] = !{i64 2, i64 3, i1 false}
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;.
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