| ; 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-annotate-decl-cs -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 |
| |
| declare void @unknown() |
| |
| declare void @bar(ptr) |
| |
| define void @foo() { |
| ; CHECK-LABEL: define {{[^@]+}}@foo() { |
| ; CHECK-NEXT: [[X:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: call void @unknown() |
| ; CHECK-NEXT: call void @bar(ptr noundef nonnull align 4 dereferenceable(4) [[X]]) |
| ; CHECK-NEXT: ret void |
| ; |
| %x = alloca i32 |
| call void @unknown() |
| call void @bar(ptr %x) |
| ret void |
| } |
| |
| define internal ptr @returned_dead() { |
| ; CHECK-LABEL: define {{[^@]+}}@returned_dead() { |
| ; CHECK-NEXT: call void @unknown() |
| ; CHECK-NEXT: ret ptr undef |
| ; |
| call void @unknown() |
| ret ptr null |
| } |
| |
| define void @caller1() { |
| ; CHECK-LABEL: define {{[^@]+}}@caller1() { |
| ; CHECK-NEXT: [[TMP1:%.*]] = call ptr @returned_dead() |
| ; CHECK-NEXT: ret void |
| ; |
| call ptr @returned_dead() |
| ret void |
| } |
| |
| define internal void @argument_dead_callback_callee(ptr %c) { |
| ; CHECK-LABEL: define {{[^@]+}}@argument_dead_callback_callee |
| ; CHECK-SAME: (ptr noalias nocapture nofree readnone align 4294967296 [[C:%.*]]) { |
| ; CHECK-NEXT: call void @unknown() |
| ; CHECK-NEXT: ret void |
| ; |
| call void @unknown() |
| ret void |
| } |
| |
| define void @callback_caller() { |
| ; TUNIT-LABEL: define {{[^@]+}}@callback_caller() { |
| ; TUNIT-NEXT: call void @callback_broker(ptr noundef nonnull @argument_dead_callback_callee, ptr nofree readnone align 4294967296 undef) |
| ; TUNIT-NEXT: ret void |
| ; |
| ; CGSCC-LABEL: define {{[^@]+}}@callback_caller() { |
| ; CGSCC-NEXT: call void @callback_broker(ptr noundef nonnull @argument_dead_callback_callee, ptr nofree noundef readnone align 4294967296 null) |
| ; CGSCC-NEXT: ret void |
| ; |
| call void @callback_broker(ptr @argument_dead_callback_callee, ptr null) |
| ret void |
| } |
| |
| ; Drop the noundef if when we replace the call argument with `undef`. We use a |
| ; varargs function as we cannot (yet) rewrite their signature. If we ever can, |
| ; try to come up with a different scheme to verify the `noundef` is dropped if |
| ; signature rewriting is not happening. |
| define internal void @callee_with_dead_noundef_arg(i1 noundef %create, ...) { |
| ; TUNIT-LABEL: define {{[^@]+}}@callee_with_dead_noundef_arg |
| ; TUNIT-SAME: (i1 [[CREATE:%.*]], ...) { |
| ; TUNIT-NEXT: call void @unknown() |
| ; TUNIT-NEXT: ret void |
| ; |
| ; CGSCC-LABEL: define {{[^@]+}}@callee_with_dead_noundef_arg |
| ; CGSCC-SAME: (i1 noundef [[CREATE:%.*]], ...) { |
| ; CGSCC-NEXT: call void @unknown() |
| ; CGSCC-NEXT: ret void |
| ; |
| call void @unknown() |
| ret void |
| } |
| |
| define void @caller_with_unused_arg(i1 %c) { |
| ; TUNIT-LABEL: define {{[^@]+}}@caller_with_unused_arg |
| ; TUNIT-SAME: (i1 noundef [[C:%.*]]) { |
| ; TUNIT-NEXT: call void (i1, ...) @callee_with_dead_noundef_arg(i1 undef) |
| ; TUNIT-NEXT: ret void |
| ; |
| ; CGSCC-LABEL: define {{[^@]+}}@caller_with_unused_arg |
| ; CGSCC-SAME: (i1 noundef [[C:%.*]]) { |
| ; CGSCC-NEXT: call void (i1, ...) @callee_with_dead_noundef_arg(i1 noundef [[C]]) |
| ; CGSCC-NEXT: ret void |
| ; |
| call void (i1, ...) @callee_with_dead_noundef_arg(i1 %c) |
| ret void |
| } |
| |
| define internal void @callee_with_dead_arg(i1 %create, ...) { |
| ; |
| ; TUNIT-LABEL: define {{[^@]+}}@callee_with_dead_arg |
| ; TUNIT-SAME: (i1 [[CREATE:%.*]], ...) { |
| ; TUNIT-NEXT: entry: |
| ; TUNIT-NEXT: br label [[IF_THEN3:%.*]] |
| ; TUNIT: if.then: |
| ; TUNIT-NEXT: unreachable |
| ; TUNIT: if.then3: |
| ; TUNIT-NEXT: call void @unknown() |
| ; TUNIT-NEXT: ret void |
| ; |
| ; CGSCC-LABEL: define {{[^@]+}}@callee_with_dead_arg |
| ; CGSCC-SAME: (i1 noundef [[CREATE:%.*]], ...) { |
| ; CGSCC-NEXT: entry: |
| ; CGSCC-NEXT: br label [[IF_THEN3:%.*]] |
| ; CGSCC: if.then: |
| ; CGSCC-NEXT: unreachable |
| ; CGSCC: if.then3: |
| ; CGSCC-NEXT: call void @unknown() |
| ; CGSCC-NEXT: ret void |
| ; |
| entry: |
| br i1 %create, label %if.then3, label %if.then |
| |
| if.then: ; preds = %entry |
| ret void |
| |
| if.then3: ; preds = %entry |
| call void @unknown() |
| ret void |
| } |
| |
| ; Drop the noundef if when we replace the call argument with `undef`. We use a |
| ; varargs function as we cannot (yet) rewrite their signature. If we ever can, |
| ; try to come up with a different scheme to verify the `noundef` is dropped if |
| ; signature rewriting is not happening. |
| define void @caller_with_noundef_arg() { |
| ; |
| ; TUNIT-LABEL: define {{[^@]+}}@caller_with_noundef_arg() { |
| ; TUNIT-NEXT: call void (i1, ...) @callee_with_dead_arg(i1 undef) |
| ; TUNIT-NEXT: ret void |
| ; |
| ; CGSCC-LABEL: define {{[^@]+}}@caller_with_noundef_arg() { |
| ; CGSCC-NEXT: call void (i1, ...) @callee_with_dead_arg(i1 noundef true) |
| ; CGSCC-NEXT: ret void |
| ; |
| call void (i1, ...) @callee_with_dead_arg(i1 noundef true) |
| ret void |
| } |
| |
| declare !callback !0 void @callback_broker(ptr, ptr) |
| !1 = !{i64 0, i64 1, i1 false} |
| !0 = !{!1} |
| ;. |
| ; CHECK: [[META0:![0-9]+]] = !{!1} |
| ; CHECK: [[META1:![0-9]+]] = !{i64 0, i64 1, i1 false} |
| ;. |