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view test/CodeGen/ARM/v6m-smul-with-overflow.ll @ 121:803732b1fca8
LLVM 5.0
author | kono |
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date | Fri, 27 Oct 2017 17:07:41 +0900 |
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; RUN: llc < %s -mtriple=thumbv6m-none-eabi | FileCheck %s define i1 @signed_multiplication_did_overflow(i32, i32) { ; CHECK-LABEL: signed_multiplication_did_overflow: entry-block: %2 = tail call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %0, i32 %1) %3 = extractvalue { i32, i1 } %2, 1 ret i1 %3 ; CHECK: mov r2, r1 ; CHECK: asrs r1, r0, #31 ; CHECK: asrs r3, r2, #31 ; CHECK: bl __aeabi_lmul } declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32)