1*9880d681SAndroid Build Coastguard Worker; Test the three-operand forms of subtraction. 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Worker; Check SRK. 6*9880d681SAndroid Build Coastguard Workerdefine i32 @f1(i32 %a, i32 %b, i32 %c) { 7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1: 8*9880d681SAndroid Build Coastguard Worker; CHECK: srk %r2, %r3, %r4 9*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 10*9880d681SAndroid Build Coastguard Worker %sub = sub i32 %b, %c 11*9880d681SAndroid Build Coastguard Worker ret i32 %sub 12*9880d681SAndroid Build Coastguard Worker} 13*9880d681SAndroid Build Coastguard Worker 14*9880d681SAndroid Build Coastguard Worker; Check that we can still use SR in obvious cases. 15*9880d681SAndroid Build Coastguard Workerdefine i32 @f2(i32 %a, i32 %b) { 16*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2: 17*9880d681SAndroid Build Coastguard Worker; CHECK: sr %r2, %r3 18*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 19*9880d681SAndroid Build Coastguard Worker %sub = sub i32 %a, %b 20*9880d681SAndroid Build Coastguard Worker ret i32 %sub 21*9880d681SAndroid Build Coastguard Worker} 22*9880d681SAndroid Build Coastguard Worker 23*9880d681SAndroid Build Coastguard Worker; Check SGRK. 24*9880d681SAndroid Build Coastguard Workerdefine i64 @f3(i64 %a, i64 %b, i64 %c) { 25*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f3: 26*9880d681SAndroid Build Coastguard Worker; CHECK: sgrk %r2, %r3, %r4 27*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 28*9880d681SAndroid Build Coastguard Worker %sub = sub i64 %b, %c 29*9880d681SAndroid Build Coastguard Worker ret i64 %sub 30*9880d681SAndroid Build Coastguard Worker} 31*9880d681SAndroid Build Coastguard Worker 32*9880d681SAndroid Build Coastguard Worker; Check that we can still use SGR in obvious cases. 33*9880d681SAndroid Build Coastguard Workerdefine i64 @f4(i64 %a, i64 %b) { 34*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f4: 35*9880d681SAndroid Build Coastguard Worker; CHECK: sgr %r2, %r3 36*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 37*9880d681SAndroid Build Coastguard Worker %sub = sub i64 %a, %b 38*9880d681SAndroid Build Coastguard Worker ret i64 %sub 39*9880d681SAndroid Build Coastguard Worker} 40