1*9880d681SAndroid Build Coastguard Worker; Test integer negation. 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Worker; Test i32->i32 negation. 6*9880d681SAndroid Build Coastguard Workerdefine i32 @f1(i32 %val) { 7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1: 8*9880d681SAndroid Build Coastguard Worker; CHECK: lcr %r2, %r2 9*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 10*9880d681SAndroid Build Coastguard Worker %neg = sub i32 0, %val 11*9880d681SAndroid Build Coastguard Worker ret i32 %neg 12*9880d681SAndroid Build Coastguard Worker} 13*9880d681SAndroid Build Coastguard Worker 14*9880d681SAndroid Build Coastguard Worker; Test i32->i64 negation. 15*9880d681SAndroid Build Coastguard Workerdefine i64 @f2(i32 %val) { 16*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2: 17*9880d681SAndroid Build Coastguard Worker; CHECK: lcgfr %r2, %r2 18*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 19*9880d681SAndroid Build Coastguard Worker %ext = sext i32 %val to i64 20*9880d681SAndroid Build Coastguard Worker %neg = sub i64 0, %ext 21*9880d681SAndroid Build Coastguard Worker ret i64 %neg 22*9880d681SAndroid Build Coastguard Worker} 23*9880d681SAndroid Build Coastguard Worker 24*9880d681SAndroid Build Coastguard Worker; Test i32->i64 negation that uses an "in-register" form of sign extension. 25*9880d681SAndroid Build Coastguard Workerdefine i64 @f3(i64 %val) { 26*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f3: 27*9880d681SAndroid Build Coastguard Worker; CHECK: lcgfr %r2, %r2 28*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 29*9880d681SAndroid Build Coastguard Worker %trunc = trunc i64 %val to i32 30*9880d681SAndroid Build Coastguard Worker %ext = sext i32 %trunc to i64 31*9880d681SAndroid Build Coastguard Worker %neg = sub i64 0, %ext 32*9880d681SAndroid Build Coastguard Worker ret i64 %neg 33*9880d681SAndroid Build Coastguard Worker} 34*9880d681SAndroid Build Coastguard Worker 35*9880d681SAndroid Build Coastguard Worker; Test i64 negation. 36*9880d681SAndroid Build Coastguard Workerdefine i64 @f4(i64 %val) { 37*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f4: 38*9880d681SAndroid Build Coastguard Worker; CHECK: lcgr %r2, %r2 39*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 40*9880d681SAndroid Build Coastguard Worker %neg = sub i64 0, %val 41*9880d681SAndroid Build Coastguard Worker ret i64 %neg 42*9880d681SAndroid Build Coastguard Worker} 43