3f540c05df
If the function is not assumed `noreturn` we should not wait for an
update to mark the call site as "may-return".
This has two kinds of consequences:
- We have less iterations in many tests.
- We have less deductions based on "known information" (since we ask
earlier, point 1, and therefore assumed information is not "known"
yet).
The latter is an artifact that we might want to tackle properly at some
point but which is not easily fixable right now.
162 lines
8.5 KiB
LLVM
162 lines
8.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes --check-attributes
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; Deep Wrapper disabled
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; RUN: opt -attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM,CHECK_DISABLED,NOT_CGSCC_NPM_DISABLED,NOT_CGSCC_OPM_DISABLED,NOT_TUNIT_NPM_DISABLED,IS__TUNIT_____DISABLED,IS________OPM_DISABLED,IS__TUNIT_OPM_DISABLED
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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=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM,CHECK_DISABLED,NOT_CGSCC_OPM_DISABLED,NOT_CGSCC_NPM_DISABLED,NOT_TUNIT_OPM_DISABLED,IS__TUNIT_____DISABLED,IS________NPM_DISABLED,IS__TUNIT_NPM_DISABLED
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; RUN: opt -attributor-cgscc -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,CHECK_DISABLED,NOT_TUNIT_NPM_DISABLED,NOT_TUNIT_OPM_DISABLED,NOT_CGSCC_NPM_DISABLED,IS__CGSCC_____DISABLED,IS________OPM_DISABLED,IS__CGSCC_OPM_DISABLED
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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,CHECK_DISABLED,NOT_TUNIT_NPM_DISABLED,NOT_TUNIT_OPM_DISABLED,NOT_CGSCC_OPM_DISABLED,IS__CGSCC_____DISABLED,IS________NPM_DISABLED,IS__CGSCC_NPM_DISABLED
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; Deep Wrapper enabled
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; RUN: opt -attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=8 -attributor-allow-deep-wrappers -disable-inlining -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM,CHECK_ENABLED,NOT_CGSCC_NPM_ENABLED,NOT_CGSCC_OPM_ENABLED,NOT_TUNIT_NPM_ENABLED,IS__TUNIT_____ENABLED,IS________OPM_ENABLED,IS__TUNIT_OPM_ENABLED
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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=8 -attributor-allow-deep-wrappers -disable-inlining -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM,CHECK_ENABLED,NOT_CGSCC_OPM_ENABLED,NOT_CGSCC_NPM_ENABLED,NOT_TUNIT_OPM_ENABLED,IS__TUNIT_____ENABLED,IS________NPM_ENABLED,IS__TUNIT_NPM_ENABLED
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; RUN: opt -attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -attributor-allow-deep-wrappers -disable-inlining -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM,CHECK_ENABLED,NOT_TUNIT_NPM_ENABLED,NOT_TUNIT_OPM_ENABLED,NOT_CGSCC_NPM_ENABLED,IS__CGSCC_____ENABLED,IS________OPM_ENABLED,IS__CGSCC_OPM_ENABLED
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -attributor-allow-deep-wrappers -disable-inlining -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM,CHECK_ENABLED,NOT_TUNIT_NPM_ENABLED,NOT_TUNIT_OPM_ENABLED,NOT_CGSCC_OPM_ENABLED,IS__CGSCC_____ENABLED,IS________NPM_ENABLED,IS__CGSCC_NPM_ENABLED
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; TEST 1: This function is of linkage `linkonce`, we cannot internalize this
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; function and use information derived from it
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;
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; CHECK-NOT: inner1.internalized
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define linkonce i32 @inner1(i32 %a, i32 %b) {
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; CHECK-LABEL: define {{[^@]+}}@inner1
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; CHECK-SAME: (i32 [[A:%.*]], i32 [[B:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[C:%.*]] = add i32 [[A]], [[B]]
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; CHECK-NEXT: ret i32 [[C]]
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;
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entry:
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%c = add i32 %a, %b
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ret i32 %c
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}
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; TEST 2: This function is of linkage `weak`, we cannot internalize this function and
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; use information derived from it
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;
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; CHECK-NOT: inner2.internalized
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define weak i32 @inner2(i32 %a, i32 %b) {
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; CHECK-LABEL: define {{[^@]+}}@inner2
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; CHECK-SAME: (i32 [[A:%.*]], i32 [[B:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[C:%.*]] = add i32 [[A]], [[B]]
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; CHECK-NEXT: ret i32 [[C]]
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;
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entry:
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%c = add i32 %a, %b
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ret i32 %c
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}
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; TEST 3: This function is of linkage `linkonce_odr`, which can be internalized using the
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; deep wrapper, and the IP information derived from this function can be used
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;
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define linkonce_odr i32 @inner3(i32 %a, i32 %b) {
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; CHECK_DISABLED-LABEL: define {{[^@]+}}@inner3
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; CHECK_DISABLED-SAME: (i32 [[A:%.*]], i32 [[B:%.*]]) {
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; CHECK_DISABLED-NEXT: entry:
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; CHECK_DISABLED-NEXT: [[C:%.*]] = add i32 [[A]], [[B]]
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; CHECK_DISABLED-NEXT: ret i32 [[C]]
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;
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entry:
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%c = add i32 %a, %b
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ret i32 %c
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}
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; TEST 4: This function is of linkage `weak_odr`, which can be internalized using the deep
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; wrapper
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;
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define weak_odr i32 @inner4(i32 %a, i32 %b) {
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; CHECK_DISABLED-LABEL: define {{[^@]+}}@inner4
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; CHECK_DISABLED-SAME: (i32 [[A:%.*]], i32 [[B:%.*]]) {
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; CHECK_DISABLED-NEXT: entry:
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; CHECK_DISABLED-NEXT: [[C:%.*]] = add i32 [[A]], [[B]]
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; CHECK_DISABLED-NEXT: ret i32 [[C]]
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;
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entry:
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%c = add i32 %a, %b
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ret i32 %c
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}
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; TEST 5: This function has linkage `linkonce_odr` but is never called (num of use = 0), so there
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; is no need to internalize this
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;
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; CHECK-NOT: inner5.internalized
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define linkonce_odr i32 @inner5(i32 %a, i32 %b) {
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; CHECK-LABEL: define {{[^@]+}}@inner5
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; CHECK-SAME: (i32 [[A:%.*]], i32 [[B:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[C:%.*]] = add i32 [[A]], [[B]]
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; CHECK-NEXT: ret i32 [[C]]
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;
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entry:
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%c = add i32 %a, %b
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ret i32 %c
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}
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; Since the inner1 cannot be internalized, there should be no change to its callsite
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; Since the inner2 cannot be internalized, there should be no change to its callsite
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; Since the inner3 is internalized, the use of the original function should be replaced by the
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; copied one
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;
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define i32 @outer1() {
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; CHECK_DISABLED-LABEL: define {{[^@]+}}@outer1() {
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; CHECK_DISABLED-NEXT: entry:
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; CHECK_DISABLED-NEXT: [[RET1:%.*]] = call i32 @inner1(i32 noundef 1, i32 noundef 2)
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; CHECK_DISABLED-NEXT: [[RET2:%.*]] = call i32 @inner2(i32 noundef 1, i32 noundef 2)
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; CHECK_DISABLED-NEXT: [[RET3:%.*]] = call i32 @inner3(i32 [[RET1]], i32 [[RET2]])
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; CHECK_DISABLED-NEXT: [[RET4:%.*]] = call i32 @inner4(i32 [[RET3]], i32 [[RET3]])
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; CHECK_DISABLED-NEXT: ret i32 [[RET4]]
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;
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; CHECK_ENABLED-LABEL: define {{[^@]+}}@outer1() {
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; CHECK_ENABLED-NEXT: entry:
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; CHECK_ENABLED-NEXT: [[RET1:%.*]] = call i32 @inner1(i32 noundef 1, i32 noundef 2)
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; CHECK_ENABLED-NEXT: [[RET2:%.*]] = call i32 @inner2(i32 noundef 1, i32 noundef 2)
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; CHECK_ENABLED-NEXT: [[RET3:%.*]] = call i32 @inner3.internalized(i32 [[RET1]], i32 [[RET2]])
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; CHECK_ENABLED-NEXT: [[RET4:%.*]] = call i32 @inner4.internalized(i32 [[RET3]], i32 [[RET3]])
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; CHECK_ENABLED-NEXT: ret i32 [[RET4]]
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;
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entry:
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%ret1 = call i32 @inner1(i32 1, i32 2)
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%ret2 = call i32 @inner2(i32 1, i32 2)
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%ret3 = call i32 @inner3(i32 %ret1, i32 %ret2)
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%ret4 = call i32 @inner4(i32 %ret3, i32 %ret3)
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ret i32 %ret4
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}
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define linkonce_odr void @unused_arg(i8) {
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; CHECK_DISABLED-LABEL: define {{[^@]+}}@unused_arg
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; CHECK_DISABLED-SAME: (i8 [[TMP0:%.*]]) {
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; CHECK_DISABLED-NEXT: unreachable
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;
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unreachable
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}
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define void @unused_arg_caller() {
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; CHECK_DISABLED-LABEL: define {{[^@]+}}@unused_arg_caller() {
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; CHECK_DISABLED-NEXT: call void @unused_arg(i8 noundef 0)
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; CHECK_DISABLED-NEXT: ret void
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;
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; IS__TUNIT_____ENABLED: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
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; IS__TUNIT_____ENABLED-LABEL: define {{[^@]+}}@unused_arg_caller
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; IS__TUNIT_____ENABLED-SAME: () [[ATTR1:#.*]] {
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; IS__TUNIT_____ENABLED-NEXT: unreachable
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;
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; IS__CGSCC_____ENABLED: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
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; IS__CGSCC_____ENABLED-LABEL: define {{[^@]+}}@unused_arg_caller
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; IS__CGSCC_____ENABLED-SAME: () [[ATTR2:#.*]] {
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; IS__CGSCC_____ENABLED-NEXT: unreachable
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;
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call void @unused_arg(i8 0)
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ret void
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}
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; Don't crash on linkonce_odr hidden functions
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define linkonce_odr hidden void @__clang_call_terminate() {
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; CHECK_DISABLED-LABEL: define {{[^@]+}}@__clang_call_terminate() {
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; CHECK_DISABLED-NEXT: call void @__clang_call_terminate()
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; CHECK_DISABLED-NEXT: unreachable
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;
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call void @__clang_call_terminate()
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unreachable
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}
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