1; Test 64-bit unsigned comparisons in which the second operand is constant. 2; 3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5; Check a value near the low end of the range. We use signed forms for 6; comparisons with zero, or things that are equivalent to them. 7define double @f1(double %a, double %b, i64 %i1) { 8; CHECK-LABEL: f1: 9; CHECK: clgijh %r2, 1 10; CHECK: ldr %f0, %f2 11; CHECK: br %r14 12 %cond = icmp ugt i64 %i1, 1 13 %res = select i1 %cond, double %a, double %b 14 ret double %res 15} 16 17; Check the top of the CLGIJ range. 18define double @f2(double %a, double %b, i64 %i1) { 19; CHECK-LABEL: f2: 20; CHECK: clgijl %r2, 255 21; CHECK: ldr %f0, %f2 22; CHECK: br %r14 23 %cond = icmp ult i64 %i1, 255 24 %res = select i1 %cond, double %a, double %b 25 ret double %res 26} 27 28; Check the next value up, which needs a separate comparison. 29define double @f3(double %a, double %b, i64 %i1) { 30; CHECK-LABEL: f3: 31; CHECK: clgfi %r2, 256 32; CHECK: jl 33; CHECK: ldr %f0, %f2 34; CHECK: br %r14 35 %cond = icmp ult i64 %i1, 256 36 %res = select i1 %cond, double %a, double %b 37 ret double %res 38} 39 40; Check the high end of the CLGFI range. 41define double @f4(double %a, double %b, i64 %i1) { 42; CHECK-LABEL: f4: 43; CHECK: clgfi %r2, 4294967295 44; CHECK-NEXT: jl 45; CHECK: ldr %f0, %f2 46; CHECK: br %r14 47 %cond = icmp ult i64 %i1, 4294967295 48 %res = select i1 %cond, double %a, double %b 49 ret double %res 50} 51 52; Check the next value up, which can use a shifted comparison 53define double @f5(double %a, double %b, i64 %i1) { 54; CHECK-LABEL: f5: 55; CHECK: srlg [[REG:%r[0-5]]], %r2, 32 56; CHECK: cgije [[REG]], 0 57; CHECK: ldr %f0, %f2 58; CHECK: br %r14 59 %cond = icmp ult i64 %i1, 4294967296 60 %res = select i1 %cond, double %a, double %b 61 ret double %res 62} 63; Check the next value up, which must use a register comparison. 64define double @f6(double %a, double %b, i64 %i1) { 65; CHECK-LABEL: f6: 66; CHECK: clgrjl %r2, 67; CHECK: ldr %f0, %f2 68; CHECK: br %r14 69 %cond = icmp ult i64 %i1, 4294967297 70 %res = select i1 %cond, double %a, double %b 71 ret double %res 72} 73