| ; Test 16-bit equality comparisons between memory and a constant. |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| |
| ; Check the low end of the unsigned 16-bit range. |
| define double @f1(double %a, double %b, ptr %ptr) { |
| ; CHECK-LABEL: f1: |
| ; CHECK: clhhsi 0(%r2), 0 |
| ; CHECK-NEXT: ber %r14 |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %val = load i16, ptr %ptr |
| %cond = icmp eq i16 %val, 0 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the high end of the unsigned 16-bit range. |
| define double @f2(double %a, double %b, ptr %ptr) { |
| ; CHECK-LABEL: f2: |
| ; CHECK: clhhsi 0(%r2), 65535 |
| ; CHECK-NEXT: ber %r14 |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %val = load i16, ptr %ptr |
| %cond = icmp eq i16 %val, 65535 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the low end of the signed 16-bit range. |
| define double @f3(double %a, double %b, ptr %ptr) { |
| ; CHECK-LABEL: f3: |
| ; CHECK: clhhsi 0(%r2), 32768 |
| ; CHECK-NEXT: ber %r14 |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %val = load i16, ptr %ptr |
| %cond = icmp eq i16 %val, -32768 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the high end of the signed 16-bit range. |
| define double @f4(double %a, double %b, ptr %ptr) { |
| ; CHECK-LABEL: f4: |
| ; CHECK: clhhsi 0(%r2), 32767 |
| ; CHECK-NEXT: ber %r14 |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %val = load i16, ptr %ptr |
| %cond = icmp eq i16 %val, 32767 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |