llvm/test/CodeGen/AArch64/bf16-select.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple aarch64-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK-BASE
; RUN: llc < %s -mtriple aarch64-unknown-unknown -mattr=+fullfp16 -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK-FP16
; RUN: llc < %s -mtriple aarch64-unknown-unknown -mattr=+bf16 -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK-BASE
; RUN: llc < %s -mtriple aarch64-unknown-unknown -mattr=+bf16,+fullfp16 -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK-FP16

define bfloat @test_select(bfloat %a, bfloat %b, i1 zeroext %c) {
; CHECK-BASE-LABEL: test_select:
; CHECK-BASE:       // %bb.0:
; CHECK-BASE-NEXT:    // kill: def $h0 killed $h0 def $s0
; CHECK-BASE-NEXT:    cmp w0, #0
; CHECK-BASE-NEXT:    // kill: def $h1 killed $h1 def $s1
; CHECK-BASE-NEXT:    fcsel s0, s0, s1, ne
; CHECK-BASE-NEXT:    // kill: def $h0 killed $h0 killed $s0
; CHECK-BASE-NEXT:    ret
;
; CHECK-FP16-LABEL: test_select:
; CHECK-FP16:       // %bb.0:
; CHECK-FP16-NEXT:    cmp w0, #0
; CHECK-FP16-NEXT:    fcsel h0, h0, h1, ne
; CHECK-FP16-NEXT:    ret
  %r = select i1 %c, bfloat %a, bfloat %b
  ret bfloat %r
}

define bfloat @test_select_fcc(bfloat %a, bfloat %b, float %c, float %d) {
; CHECK-BASE-LABEL: test_select_fcc:
; CHECK-BASE:       // %bb.0:
; CHECK-BASE-NEXT:    fcmp s2, s3
; CHECK-BASE-NEXT:    // kill: def $h0 killed $h0 def $s0
; CHECK-BASE-NEXT:    // kill: def $h1 killed $h1 def $s1
; CHECK-BASE-NEXT:    fcsel s0, s0, s1, ne
; CHECK-BASE-NEXT:    // kill: def $h0 killed $h0 killed $s0
; CHECK-BASE-NEXT:    ret
;
; CHECK-FP16-LABEL: test_select_fcc:
; CHECK-FP16:       // %bb.0:
; CHECK-FP16-NEXT:    fcmp s2, s3
; CHECK-FP16-NEXT:    fcsel h0, h0, h1, ne
; CHECK-FP16-NEXT:    ret
  %cc = fcmp une float %c, %d
  %r = select i1 %cc, bfloat %a, bfloat %b
  ret bfloat %r
}

define bfloat @test_select_icc(bfloat %a, bfloat %b, i32 %c, i32 %d) {
; CHECK-BASE-LABEL: test_select_icc:
; CHECK-BASE:       // %bb.0:
; CHECK-BASE-NEXT:    // kill: def $h0 killed $h0 def $s0
; CHECK-BASE-NEXT:    cmp w0, w1
; CHECK-BASE-NEXT:    // kill: def $h1 killed $h1 def $s1
; CHECK-BASE-NEXT:    fcsel s0, s0, s1, ne
; CHECK-BASE-NEXT:    // kill: def $h0 killed $h0 killed $s0
; CHECK-BASE-NEXT:    ret
;
; CHECK-FP16-LABEL: test_select_icc:
; CHECK-FP16:       // %bb.0:
; CHECK-FP16-NEXT:    cmp w0, w1
; CHECK-FP16-NEXT:    fcsel h0, h0, h1, ne
; CHECK-FP16-NEXT:    ret
  %cc = icmp ne i32 %c, %d
  %r = select i1 %cc, bfloat %a, bfloat %b
  ret bfloat %r
}