1; Test the three-operand forms of subtraction. 2; 3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s 4 5; Check SRK. 6define i32 @f1(i32 %a, i32 %b, i32 %c) { 7; CHECK-LABEL: f1: 8; CHECK: srk %r2, %r3, %r4 9; CHECK: br %r14 10 %sub = sub i32 %b, %c 11 ret i32 %sub 12} 13 14; Check that we can still use SR in obvious cases. 15define i32 @f2(i32 %a, i32 %b) { 16; CHECK-LABEL: f2: 17; CHECK: sr %r2, %r3 18; CHECK: br %r14 19 %sub = sub i32 %a, %b 20 ret i32 %sub 21} 22 23; Check SGRK. 24define i64 @f3(i64 %a, i64 %b, i64 %c) { 25; CHECK-LABEL: f3: 26; CHECK: sgrk %r2, %r3, %r4 27; CHECK: br %r14 28 %sub = sub i64 %b, %c 29 ret i64 %sub 30} 31 32; Check that we can still use SGR in obvious cases. 33define i64 @f4(i64 %a, i64 %b) { 34; CHECK-LABEL: f4: 35; CHECK: sgr %r2, %r3 36; CHECK: br %r14 37 %sub = sub i64 %a, %b 38 ret i64 %sub 39} 40