1 ; RUN: llc < %s -march=arm -mattr=+v6t2 | FileCheck %s 2 ; RUN: llc < %s -march=arm -mattr=+v6t2 -arm-use-mulops=false | FileCheck %s -check-prefix=NO_MULOPS 3 4 define i32 @f1(i32 %a, i32 %b, i32 %c) { 5 %tmp1 = mul i32 %a, %b 6 %tmp2 = sub i32 %c, %tmp1 7 ret i32 %tmp2 8 } 9 10 ; sub doesn't commute, so no mls for this one 11 define i32 @f2(i32 %a, i32 %b, i32 %c) { 12 %tmp1 = mul i32 %a, %b 13 %tmp2 = sub i32 %tmp1, %c 14 ret i32 %tmp2 15 } 16 17 ; CHECK: f1: 18 ; CHECK: mls r0, r0, r1, r2 19 ; NO_MULOPS: f1: 20 ; NO_MULOPS: mul r0, r0, r1 21 ; NO_MULOPS-NEXT: sub r0, r2, r0 22 23 ; CHECK: f2: 24 ; CHECK: mul r0, r0, r1 25 ; CHECK-NEXT: sub r0, r0, r2 26 ; NO_MULOPS: f2: 27 ; NO_MULOPS: mul r0, r0, r1 28 ; NO_MULOPS-NEXT: sub r0, r0, r2 29
