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; Test 64-bit unsigned comparisons in which the second operand is constant.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; Check a value near the low end of the range. We use signed forms for
; comparisons with zero, or things that are equivalent to them.
define double @f1(double %a, double %b, i64 %i1) {
; CHECK-LABEL: f1:
; CHECK: clgijh %r2, 1
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%cond = icmp ugt i64 %i1, 1
%res = select i1 %cond, double %a, double %b
ret double %res
}
; Check the top of the CLGIJ range.
define double @f2(double %a, double %b, i64 %i1) {
; CHECK-LABEL: f2:
; CHECK: clgijl %r2, 255
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%cond = icmp ult i64 %i1, 255
%res = select i1 %cond, double %a, double %b
ret double %res
}
; Check the next value up, which needs a separate comparison.
define double @f3(double %a, double %b, i64 %i1) {
; CHECK-LABEL: f3:
; CHECK: clgfi %r2, 256
; CHECK: jl
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%cond = icmp ult i64 %i1, 256
%res = select i1 %cond, double %a, double %b
ret double %res
}
; Check the high end of the CLGFI range.
define double @f4(double %a, double %b, i64 %i1) {
; CHECK-LABEL: f4:
; CHECK: clgfi %r2, 4294967295
; CHECK-NEXT: jl
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%cond = icmp ult i64 %i1, 4294967295
%res = select i1 %cond, double %a, double %b
ret double %res
}
; Check the next value up, which can use a shifted comparison
define double @f5(double %a, double %b, i64 %i1) {
; CHECK-LABEL: f5:
; CHECK: srlg [[REG:%r[0-5]]], %r2, 32
; CHECK: cgije [[REG]], 0
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%cond = icmp ult i64 %i1, 4294967296
%res = select i1 %cond, double %a, double %b
ret double %res
}
; Check the next value up, which must use a register comparison.
define double @f6(double %a, double %b, i64 %i1) {
; CHECK-LABEL: f6:
; CHECK: clgrjl %r2,
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%cond = icmp ult i64 %i1, 4294967297
%res = select i1 %cond, double %a, double %b
ret double %res
}
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