1 ; Test 128-bit floating-point comparison. The tests assume a z10 implementation 2 ; of select, using conditional branches rather than LOCGR. 3 ; 4 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s 5 6 ; There is no memory form of 128-bit comparison. 7 define i64 @f1(i64 %a, i64 %b, fp128 *%ptr, float %f2) { 8 ; CHECK-LABEL: f1: 9 ; CHECK: lxebr %f0, %f0 10 ; CHECK: ld %f1, 0(%r4) 11 ; CHECK: ld %f3, 8(%r4) 12 ; CHECK: cxbr %f1, %f0 13 ; CHECK-NEXT: ber %r14 14 ; CHECK: lgr %r2, %r3 15 ; CHECK: br %r14 16 %f2x = fpext float %f2 to fp128 17 %f1 = load fp128 , fp128 *%ptr 18 %cond = fcmp oeq fp128 %f1, %f2x 19 %res = select i1 %cond, i64 %a, i64 %b 20 ret i64 %res 21 } 22 23 ; Check comparison with zero. 24 define i64 @f2(i64 %a, i64 %b, fp128 *%ptr) { 25 ; CHECK-LABEL: f2: 26 ; CHECK: ld %f0, 0(%r4) 27 ; CHECK: ld %f2, 8(%r4) 28 ; CHECK: ltxbr %f0, %f0 29 ; CHECK-NEXT: ber %r14 30 ; CHECK: lgr %r2, %r3 31 ; CHECK: br %r14 32 %f = load fp128 , fp128 *%ptr 33 %cond = fcmp oeq fp128 %f, 0xL00000000000000000000000000000000 34 %res = select i1 %cond, i64 %a, i64 %b 35 ret i64 %res 36 } 37
