1*9880d681SAndroid Build Coastguard Worker; Test negated floating-point absolute. 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker; Test f32. 7*9880d681SAndroid Build Coastguard Workerdeclare float @llvm.fabs.f32(float %f) 8*9880d681SAndroid Build Coastguard Workerdefine float @f1(float %f) { 9*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1: 10*9880d681SAndroid Build Coastguard Worker; CHECK: lndfr %f0, %f0 11*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 12*9880d681SAndroid Build Coastguard Worker %abs = call float @llvm.fabs.f32(float %f) 13*9880d681SAndroid Build Coastguard Worker %res = fsub float -0.0, %abs 14*9880d681SAndroid Build Coastguard Worker ret float %res 15*9880d681SAndroid Build Coastguard Worker} 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Worker; Test f64. 18*9880d681SAndroid Build Coastguard Workerdeclare double @llvm.fabs.f64(double %f) 19*9880d681SAndroid Build Coastguard Workerdefine double @f2(double %f) { 20*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2: 21*9880d681SAndroid Build Coastguard Worker; CHECK: lndfr %f0, %f0 22*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 23*9880d681SAndroid Build Coastguard Worker %abs = call double @llvm.fabs.f64(double %f) 24*9880d681SAndroid Build Coastguard Worker %res = fsub double -0.0, %abs 25*9880d681SAndroid Build Coastguard Worker ret double %res 26*9880d681SAndroid Build Coastguard Worker} 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Worker; Test f128. With the loads and stores, a pure negative-absolute would 29*9880d681SAndroid Build Coastguard Worker; probably be better implemented using an OI on the upper byte. Do some 30*9880d681SAndroid Build Coastguard Worker; extra processing so that using FPRs is unequivocally better. 31*9880d681SAndroid Build Coastguard Workerdeclare fp128 @llvm.fabs.f128(fp128 %f) 32*9880d681SAndroid Build Coastguard Workerdefine void @f3(fp128 *%ptr, fp128 *%ptr2) { 33*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f3: 34*9880d681SAndroid Build Coastguard Worker; CHECK: lnxbr 35*9880d681SAndroid Build Coastguard Worker; CHECK: dxbr 36*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 37*9880d681SAndroid Build Coastguard Worker %orig = load fp128 , fp128 *%ptr 38*9880d681SAndroid Build Coastguard Worker %abs = call fp128 @llvm.fabs.f128(fp128 %orig) 39*9880d681SAndroid Build Coastguard Worker %negabs = fsub fp128 0xL00000000000000008000000000000000, %abs 40*9880d681SAndroid Build Coastguard Worker %op2 = load fp128 , fp128 *%ptr2 41*9880d681SAndroid Build Coastguard Worker %res = fdiv fp128 %negabs, %op2 42*9880d681SAndroid Build Coastguard Worker store fp128 %res, fp128 *%ptr 43*9880d681SAndroid Build Coastguard Worker ret void 44*9880d681SAndroid Build Coastguard Worker} 45