1; RUN: llc < %s -mtriple=thumbv6m-none-eabi | FileCheck %s 2 3define i1 @unsigned_multiplication_did_overflow(i32, i32) { 4; CHECK-LABEL: unsigned_multiplication_did_overflow: 5entry-block: 6 %2 = tail call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %0, i32 %1) 7 %3 = extractvalue { i32, i1 } %2, 1 8 ret i1 %3 9 10; CHECK: mov{{s?}} r2, r1 11; CHECK: mov{{s?}} r1, #0 12; CHECK: mov{{s?}} r3, {{#0|r1}} 13; CHECK: bl __aeabi_lmul 14} 15 16declare { i32, i1 } @llvm.umul.with.overflow.i32(i32, i32) 17