Mercurial > hg > CbC > CbC_llvm
view test/CodeGen/SystemZ/int-sub-09.ll @ 120:1172e4bd9c6f
update 4.0.0
author | mir3636 |
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date | Fri, 25 Nov 2016 19:14:25 +0900 |
parents | 95c75e76d11b |
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; Test 128-bit subtraction when the distinct-operands facility is available. ; ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s ; Test the case where both operands are in registers. define i64 @f1(i64 %a, i64 %b, i64 %c, i64 %d, i64 *%ptr) { ; CHECK-LABEL: f1: ; CHECK: slgrk %r2, %r4, %r5 ; CHECK: slbgr ; CHECK: br %r14 %x1 = insertelement <2 x i64> undef, i64 %b, i32 0 %x2 = insertelement <2 x i64> %x1, i64 %c, i32 1 %x = bitcast <2 x i64> %x2 to i128 %y2 = insertelement <2 x i64> %x1, i64 %d, i32 1 %y = bitcast <2 x i64> %y2 to i128 %sub = sub i128 %x, %y %subv = bitcast i128 %sub to <2 x i64> %high = extractelement <2 x i64> %subv, i32 0 store i64 %high, i64 *%ptr %low = extractelement <2 x i64> %subv, i32 1 ret i64 %low }