| Ranjeet Singh | acbd4e1 | 2017-04-26 13:41:43 +0000 | [diff] [blame] | 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) |