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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
; 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,TUNIT
; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
;
; #include <pthread.h>
;
; ptr GlobalVPtr;
;
; static ptr foo(ptr arg) { return arg; }
; static ptr bar(ptr arg) { return arg; }
;
; int main() {
; pthread_t thread;
; pthread_create(&thread, NULL, foo, NULL);
; pthread_create(&thread, NULL, bar, &GlobalVPtr);
; return 0;
; }
;
; Verify the constant values NULL and &GlobalVPtr are propagated into foo and
; bar, respectively.
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
%union.pthread_attr_t = type { i64, [48 x i8] }
@GlobalVPtr = common dso_local global ptr null, align 8
; FIXME: nocapture & noalias for @GlobalVPtr in %call1
; FIXME: nocapture & noalias for %alloc2 in %call3
;.
; CHECK: @[[GLOBALVPTR:[a-zA-Z0-9_$"\\.-]+]] = common dso_local global ptr null, align 8
;.
define dso_local i32 @main() {
; TUNIT-LABEL: define {{[^@]+}}@main() {
; TUNIT-NEXT: entry:
; TUNIT-NEXT: [[ALLOC1:%.*]] = alloca i8, align 8
; TUNIT-NEXT: [[ALLOC2:%.*]] = alloca i8, align 8
; TUNIT-NEXT: [[THREAD:%.*]] = alloca i64, align 8
; TUNIT-NEXT: [[CALL:%.*]] = call i32 @pthread_create(ptr noundef nonnull align 8 dereferenceable(8) [[THREAD]], ptr noalias nocapture noundef align 4294967296 null, ptr noundef nonnull @foo, ptr noalias nocapture nofree readnone align 4294967296 undef)
; TUNIT-NEXT: [[CALL1:%.*]] = call i32 @pthread_create(ptr noundef nonnull align 8 dereferenceable(8) [[THREAD]], ptr noalias nocapture noundef align 4294967296 null, ptr noundef nonnull @bar, ptr noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) undef)
; TUNIT-NEXT: [[CALL2:%.*]] = call i32 @pthread_create(ptr noundef nonnull align 8 dereferenceable(8) [[THREAD]], ptr noalias nocapture noundef align 4294967296 null, ptr noundef nonnull @baz, ptr noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
; TUNIT-NEXT: [[CALL3:%.*]] = call i32 @pthread_create(ptr noundef nonnull align 8 dereferenceable(8) [[THREAD]], ptr noalias nocapture noundef align 4294967296 null, ptr noundef nonnull @buz, ptr noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[ALLOC2]])
; TUNIT-NEXT: ret i32 0
;
; CGSCC-LABEL: define {{[^@]+}}@main() {
; CGSCC-NEXT: entry:
; CGSCC-NEXT: [[ALLOC1:%.*]] = alloca i8, align 8
; CGSCC-NEXT: [[ALLOC2:%.*]] = alloca i8, align 8
; CGSCC-NEXT: [[THREAD:%.*]] = alloca i64, align 8
; CGSCC-NEXT: [[CALL:%.*]] = call i32 @pthread_create(ptr noundef nonnull align 8 dereferenceable(8) [[THREAD]], ptr noalias nocapture noundef align 4294967296 null, ptr noundef nonnull @foo, ptr noalias nocapture nofree noundef readnone align 4294967296 null)
; CGSCC-NEXT: [[CALL1:%.*]] = call i32 @pthread_create(ptr noundef nonnull align 8 dereferenceable(8) [[THREAD]], ptr noalias nocapture noundef align 4294967296 null, ptr noundef nonnull @bar, ptr noalias nofree noundef nonnull readnone align 8 dereferenceable(8) @GlobalVPtr)
; CGSCC-NEXT: [[CALL2:%.*]] = call i32 @pthread_create(ptr noundef nonnull align 8 dereferenceable(8) [[THREAD]], ptr noalias nocapture noundef align 4294967296 null, ptr noundef nonnull @baz, ptr noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
; CGSCC-NEXT: [[CALL3:%.*]] = call i32 @pthread_create(ptr noundef nonnull align 8 dereferenceable(8) [[THREAD]], ptr noalias nocapture noundef align 4294967296 null, ptr noundef nonnull @buz, ptr noalias nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC2]])
; CGSCC-NEXT: ret i32 0
;
entry:
%alloc1 = alloca i8, align 8
%alloc2 = alloca i8, align 8
%thread = alloca i64, align 8
%call = call i32 @pthread_create(ptr nonnull %thread, ptr null, ptr nonnull @foo, ptr null)
%call1 = call i32 @pthread_create(ptr nonnull %thread, ptr null, ptr nonnull @bar, ptr @GlobalVPtr)
%call2 = call i32 @pthread_create(ptr nonnull %thread, ptr null, ptr nonnull @baz, ptr nocapture %alloc1)
%call3 = call i32 @pthread_create(ptr nonnull %thread, ptr null, ptr nonnull @buz, ptr %alloc2)
ret i32 0
}
declare !callback !0 dso_local i32 @pthread_create(ptr, ptr, ptr, ptr)
define internal ptr @foo(ptr %arg) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@foo
; CHECK-SAME: (ptr noalias nocapture nofree readnone align 4294967296 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: ret ptr null
;
entry:
ret ptr %arg
}
define internal ptr @bar(ptr %arg) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@bar
; CHECK-SAME: (ptr noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) [[ARG:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: ret ptr @GlobalVPtr
;
entry:
ret ptr %arg
}
define internal ptr @baz(ptr %arg) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@baz
; CHECK-SAME: (ptr noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: ret ptr [[ARG]]
;
entry:
ret ptr %arg
}
define internal ptr @buz(ptr %arg) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@buz
; CHECK-SAME: (ptr noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: ret ptr [[ARG]]
;
entry:
ret ptr %arg
}
!1 = !{i64 2, i64 3, i1 false}
!0 = !{!1}
;.
; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
;.
; CHECK: [[META0:![0-9]+]] = !{!1}
; CHECK: [[META1:![0-9]+]] = !{i64 2, i64 3, i1 false}
;.
|
