xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/fast-isel-select-cmp.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)

; RUN: llc < %s -O0 -mtriple=x86_64-apple-darwin10 | FileCheck %s

; Test if we do not fold the cmp into select if the instructions are in
; different basic blocks.

define i32 @select_cmp_cmov_i32(i32 %a, i32 %b) {
; CHECK-LABEL: select_cmp_cmov_i32
; CHECK-LABEL: continue
; CHECK-NOT:   cmp
  %1 = icmp ult i32 %a, %b
  br i1 %1, label %continue, label %exit

continue:
  %2 = select i1 %1, i32 %a, i32 %b
  ret i32 %2

exit:
  ret i32 -1
}

define float @select_fcmp_oeq_f32(float %a, float %b, float %c, float %d) {
; CHECK-LABEL: select_fcmp_oeq_f32
; CHECK-LABEL: continue
; CHECK-NOT:   cmp
  %1 = fcmp oeq float %a, %b
  br i1 %1, label %continue, label %exit

continue:
  %2 = select i1 %1, float %c, float %d
  ret float %2

exit:
  ret float -1.0
}

define float @select_fcmp_one_f32(float %a, float %b, float %c, float %d) {
; CHECK-LABEL: select_fcmp_one_f32
; CHECK-LABEL: continue
; CHECK-NOT:   ucomi
  %1 = fcmp one float %a, %b
  br i1 %1, label %continue, label %exit

continue:
  %2 = select i1 %1, float %c, float %d
  ret float %2

exit:
  ret float -1.0
}