| ; Test 64-bit signed comparisons in which the second operand is a constant. |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| |
| ; Check comparisons with 0. |
| define double @f1(double %a, double %b, i64 %i1) { |
| ; CHECK: f1: |
| ; CHECK: cghi %r2, 0 |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, 0 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check comparisons with 1. |
| define double @f2(double %a, double %b, i64 %i1) { |
| ; CHECK: f2: |
| ; CHECK: cghi %r2, 1 |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, 1 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the high end of the CGHI range. |
| define double @f3(double %a, double %b, i64 %i1) { |
| ; CHECK: f3: |
| ; CHECK: cghi %r2, 32767 |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, 32767 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the next value up, which must use CGFI. |
| define double @f4(double %a, double %b, i64 %i1) { |
| ; CHECK: f4: |
| ; CHECK: cgfi %r2, 32768 |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, 32768 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the high end of the CGFI range. |
| define double @f5(double %a, double %b, i64 %i1) { |
| ; CHECK: f5: |
| ; CHECK: cgfi %r2, 2147483647 |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, 2147483647 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the next value up, which must use register comparison. |
| define double @f6(double %a, double %b, i64 %i1) { |
| ; CHECK: f6: |
| ; CHECK: cgr |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, 2147483648 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the high end of the negative CGHI range. |
| define double @f7(double %a, double %b, i64 %i1) { |
| ; CHECK: f7: |
| ; CHECK: cghi %r2, -1 |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, -1 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the low end of the CGHI range. |
| define double @f8(double %a, double %b, i64 %i1) { |
| ; CHECK: f8: |
| ; CHECK: cghi %r2, -32768 |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, -32768 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the next value down, which must use CGFI instead. |
| define double @f9(double %a, double %b, i64 %i1) { |
| ; CHECK: f9: |
| ; CHECK: cgfi %r2, -32769 |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, -32769 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the low end of the CGFI range. |
| define double @f10(double %a, double %b, i64 %i1) { |
| ; CHECK: f10: |
| ; CHECK: cgfi %r2, -2147483648 |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, -2147483648 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |
| |
| ; Check the next value down, which must use register comparison. |
| define double @f11(double %a, double %b, i64 %i1) { |
| ; CHECK: f11: |
| ; CHECK: cgr |
| ; CHECK-NEXT: j{{g?}}l |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| %cond = icmp slt i64 %i1, -2147483649 |
| %res = select i1 %cond, double %a, double %b |
| ret double %res |
| } |