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