Mercurial > hg > CbC > CbC_llvm
view clang/test/CodeGenCXX/cxx2a-left-shift.cpp @ 206:f17a3b42b08b
Added tag before-12 for changeset b7591485f4cd
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
---|---|
date | Mon, 07 Jun 2021 21:25:57 +0900 |
parents | 1d019706d866 |
children |
line wrap: on
line source
// RUN: %clang_cc1 -std=c++2a -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,REGULAR // RUN: %clang_cc1 -std=c++2a -fsanitize=shift-base,shift-exponent -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,SANITIZED // CHECK-LABEL: @_Z12lsh_overflow int lsh_overflow(int a, int b) { // SANITIZED: %[[RHS_INBOUNDS:.*]] = icmp ule i32 %[[RHS:.*]], 31 // SANITIZED-NEXT: br i1 %[[RHS_INBOUNDS]], label %[[VALID:.*]], label // SANITIZED: call void @__ubsan_handle_shift_out_of_bounds // No check for the LHS here. // SANITIZED: [[VALID]]: // SANITIZED-NEXT: shl i32 % // SANITIZED-NEXT: ret i32 // Just ensure there's no nsw nuw flags here. // REGULAR: shl i32 % return a << b; }