1 ; Test 128-bit subtraction when the distinct-operands facility is available. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s 4 5 ; Test the case where both operands are in registers. 6 define i64 @f1(i64 %a, i64 %b, i64 %c, i64 %d, i64 *%ptr) { 7 ; CHECK-LABEL: f1: 8 ; CHECK: slgrk %r2, %r4, %r5 9 ; CHECK: slbgr 10 ; CHECK: br %r14 11 %x1 = insertelement <2 x i64> undef, i64 %b, i32 0 12 %x2 = insertelement <2 x i64> %x1, i64 %c, i32 1 13 %x = bitcast <2 x i64> %x2 to i128 14 %y2 = insertelement <2 x i64> %x1, i64 %d, i32 1 15 %y = bitcast <2 x i64> %y2 to i128 16 %sub = sub i128 %x, %y 17 %subv = bitcast i128 %sub to <2 x i64> 18 %high = extractelement <2 x i64> %subv, i32 0 19 store i64 %high, i64 *%ptr 20 %low = extractelement <2 x i64> %subv, i32 1 21 ret i64 %low 22 } 23
