Mercurial > hg > Members > tobaru > cbc > CbC_llvm
annotate test/CodeGen/ARM/v6m-smul-with-overflow.ll @ 128:c347d3398279 default tip
fix
author | mir3636 |
---|---|
date | Wed, 06 Dec 2017 14:37:17 +0900 |
parents | 803732b1fca8 |
children |
rev | line source |
---|---|
121 | 1 ; RUN: llc < %s -mtriple=thumbv6m-none-eabi | FileCheck %s |
2 | |
3 define i1 @signed_multiplication_did_overflow(i32, i32) { | |
4 ; CHECK-LABEL: signed_multiplication_did_overflow: | |
5 entry-block: | |
6 %2 = tail call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %0, i32 %1) | |
7 %3 = extractvalue { i32, i1 } %2, 1 | |
8 ret i1 %3 | |
9 | |
10 ; CHECK: mov r2, r1 | |
11 ; CHECK: asrs r1, r0, #31 | |
12 ; CHECK: asrs r3, r2, #31 | |
13 ; CHECK: bl __aeabi_lmul | |
14 } | |
15 | |
16 declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32) |