llvm/test/CodeGen/X86/nofpclass.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=-sse2,-sse | FileCheck %s --check-prefix=NOSSE
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=SSE

@gf = global { float, float } zeroinitializer, align 8

define void @f(<2 x float> noundef nofpclass(nan inf) %e.coerce) {
; NOSSE-LABEL: f:
; NOSSE:       # %bb.0: # %entry
; NOSSE-NEXT:    flds {{[0-9]+}}(%rsp)
; NOSSE-NEXT:    flds {{[0-9]+}}(%rsp)
; NOSSE-NEXT:    movq gf@GOTPCREL(%rip), %rax
; NOSSE-NEXT:    fstps 4(%rax)
; NOSSE-NEXT:    fstps (%rax)
; NOSSE-NEXT:    retq
;
; SSE-LABEL: f:
; SSE:       # %bb.0: # %entry
; SSE-NEXT:    movq gf@GOTPCREL(%rip), %rax
; SSE-NEXT:    movlps %xmm0, (%rax)
; SSE-NEXT:    retq
entry:
  store <2 x float> %e.coerce, ptr @gf, align 8
  ret void
}

define i32 @load_metadata(ptr %0) nounwind {
; NOSSE-LABEL: load_metadata:
; NOSSE:       # %bb.0:
; NOSSE-NEXT:    movl (%rdi), %eax
; NOSSE-NEXT:    retq
;
; SSE-LABEL: load_metadata:
; SSE:       # %bb.0:
; SSE-NEXT:    movl (%rdi), %eax
; SSE-NEXT:    retq
  %f = load float, ptr %0, align 4, !nofpclass !{i32 3}
  %i = bitcast float %f to i32
  ret i32 %i
}

define i32 @load_metadata_fmaximumnum(ptr %0, ptr %1) nounwind {
; NOSSE-LABEL: load_metadata_fmaximumnum:
; NOSSE:       # %bb.0:
; NOSSE-NEXT:    flds (%rdi)
; NOSSE-NEXT:    flds (%rsi)
; NOSSE-NEXT:    fxch %st(1)
; NOSSE-NEXT:    fucomi %st(1), %st
; NOSSE-NEXT:    fxch %st(1)
; NOSSE-NEXT:    fcmovnbe %st(1), %st
; NOSSE-NEXT:    fstp %st(1)
; NOSSE-NEXT:    fstps -{{[0-9]+}}(%rsp)
; NOSSE-NEXT:    movl -{{[0-9]+}}(%rsp), %eax
; NOSSE-NEXT:    retq
;
; SSE-LABEL: load_metadata_fmaximumnum:
; SSE:       # %bb.0:
; SSE-NEXT:    movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
; SSE-NEXT:    maxss (%rsi), %xmm0
; SSE-NEXT:    movd %xmm0, %eax
; SSE-NEXT:    retq
  %f0 = load float, ptr %0, align 4, !nofpclass !{i32 99} ; 99 == (fcNan | fcZero)
  %f1 = load float, ptr %1, align 4, !nofpclass !{i32 99} ; 99 == (fcNan | fcZero)
  %min = call float @llvm.maximumnum.f32(float %f0, float %f1);
  %i = bitcast float %min to i32
  ret i32 %i
}