Page MenuHomePhabricator
Differential D82317 Diff 275771 clang/test/CodeGen/aarch64-byval-temp.c

Changeset View

Standalone View

View Options

clang/test/CodeGen/aarch64-byval-temp.c

Context not available.
// CHECK-O0-NEXT: %[[dst:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[l]] to i8* // CHECK-O0-NEXT: %[[dst:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[l]] to i8*
// CHECK-O0-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %[[src]], i8* align 8 %[[dst]], i64 64, i1 false) // CHECK-O0-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %[[src]], i8* align 8 %[[dst]], i64 64, i1 false)
// Finally, call using a pointer to the temporary stack space. // Finally, call using a pointer to the temporary stack space.
// CHECK-O0-NEXT: call void @pass_large(%struct.large* %[[byvaltemp]]) // CHECK-O0-NEXT: call void @pass_large(%struct.large* noundef %[[byvaltemp]])
// Now, do the same for the second call, using the second temporary alloca. // Now, do the same for the second call, using the second temporary alloca.
// CHECK-O0-NEXT: %[[src:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[byvaltemp1]] to i8* // CHECK-O0-NEXT: %[[src:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[byvaltemp1]] to i8*
// CHECK-O0-NEXT: %[[dst:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[l]] to i8* // CHECK-O0-NEXT: %[[dst:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[l]] to i8*
// CHECK-O0-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %[[src]], i8* align 8 %[[dst]], i64 64, i1 false) // CHECK-O0-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %[[src]], i8* align 8 %[[dst]], i64 64, i1 false)
// CHECK-O0-NEXT: call void @pass_large(%struct.large* %[[byvaltemp1]]) // CHECK-O0-NEXT: call void @pass_large(%struct.large* noundef %[[byvaltemp1]])
// CHECK-O0-NEXT: ret void // CHECK-O0-NEXT: ret void
// //
// At O3, we should have lifetime markers to help the optimizer re-use the temporary allocas. // At O3, we should have lifetime markers to help the optimizer re-use the temporary allocas.
Context not available.
// CHECK-O3-NEXT: %[[dst:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[l]] to i8* // CHECK-O3-NEXT: %[[dst:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[l]] to i8*
// CHECK-O3-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %[[src]], i8* align 8 %[[dst]], i64 64, i1 false) // CHECK-O3-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %[[src]], i8* align 8 %[[dst]], i64 64, i1 false)
// Finally, call using a pointer to the temporary stack space. // Finally, call using a pointer to the temporary stack space.
// CHECK-O3-NEXT: call void @pass_large(%struct.large* %[[byvaltemp]]) // CHECK-O3-NEXT: call void @pass_large(%struct.large* noundef %[[byvaltemp]])
// //
// The lifetime of the temporary used to pass a pointer to the struct ends here. // The lifetime of the temporary used to pass a pointer to the struct ends here.
// CHECK-O3-NEXT: %[[bitcastbyvaltemp:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[byvaltemp]] to i8* // CHECK-O3-NEXT: %[[bitcastbyvaltemp:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[byvaltemp]] to i8*
Context not available.
// CHECK-O3-NEXT: %[[src:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[byvaltemp1]] to i8* // CHECK-O3-NEXT: %[[src:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[byvaltemp1]] to i8*
// CHECK-O3-NEXT: %[[dst:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[l]] to i8* // CHECK-O3-NEXT: %[[dst:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[l]] to i8*
// CHECK-O3-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %[[src]], i8* align 8 %[[dst]], i64 64, i1 false) // CHECK-O3-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %[[src]], i8* align 8 %[[dst]], i64 64, i1 false)
// CHECK-O3-NEXT: call void @pass_large(%struct.large* %[[byvaltemp1]]) // CHECK-O3-NEXT: call void @pass_large(%struct.large* noundef %[[byvaltemp1]])
// CHECK-O3-NEXT: %[[bitcastbyvaltemp:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[byvaltemp1]] to i8* // CHECK-O3-NEXT: %[[bitcastbyvaltemp:[0-9A-Za-z-]+]] = bitcast %struct.large* %[[byvaltemp1]] to i8*
// CHECK-O3-NEXT: call void @llvm.lifetime.end.p0i8(i64 64, i8* %[[bitcastbyvaltemp]]) // CHECK-O3-NEXT: call void @llvm.lifetime.end.p0i8(i64 64, i8* %[[bitcastbyvaltemp]])
// //
Context not available.