llvm-project/llvm/test/CodeGen/X86/combine-umin.ll

61 lines
2.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefixes=CHECK,SSE2
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefixes=CHECK,SSE41
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.2 | FileCheck %s --check-prefixes=CHECK,SSE42
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefixes=CHECK,AVX
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefixes=CHECK,AVX
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f | FileCheck %s --check-prefixes=CHECK,AVX
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw | FileCheck %s --check-prefixes=CHECK,AVX
define i8 @test_demandedbits_umin_ult(i8 %a0, i8 %a1) {
; CHECK-LABEL: test_demandedbits_umin_ult:
; CHECK: # %bb.0:
; CHECK-NEXT: movl %esi, %eax
; CHECK-NEXT: orb $4, %al
; CHECK-NEXT: andb $12, %al
; CHECK-NEXT: # kill: def $al killed $al killed $eax
; CHECK-NEXT: retq
%lhs0 = and i8 %a0, 13 ; b1101
%rhs0 = and i8 %a1, 12 ; b1100
%lhs1 = or i8 %lhs0, 12 ; b1100
%rhs1 = or i8 %rhs0, 4 ; b0100
%umin = tail call i8 @llvm.umin.i8(i8 %lhs1, i8 %rhs1)
ret i8 %umin
}
declare i8 @llvm.umin.i8(i8, i8)
define <8 x i16> @test_v8i16_nosignbit(<8 x i16> %a, <8 x i16> %b) {
; SSE2-LABEL: test_v8i16_nosignbit:
; SSE2: # %bb.0:
; SSE2-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; SSE2-NEXT: psrlw $1, %xmm1
; SSE2-NEXT: pmaxsw %xmm1, %xmm0
; SSE2-NEXT: retq
;
; SSE41-LABEL: test_v8i16_nosignbit:
; SSE41: # %bb.0:
; SSE41-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; SSE41-NEXT: psrlw $1, %xmm1
; SSE41-NEXT: pmaxuw %xmm1, %xmm0
; SSE41-NEXT: retq
;
; SSE42-LABEL: test_v8i16_nosignbit:
; SSE42: # %bb.0:
; SSE42-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; SSE42-NEXT: psrlw $1, %xmm1
; SSE42-NEXT: pmaxuw %xmm1, %xmm0
; SSE42-NEXT: retq
;
; AVX-LABEL: test_v8i16_nosignbit:
; AVX: # %bb.0:
; AVX-NEXT: vpand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
; AVX-NEXT: vpsrlw $1, %xmm1, %xmm1
; AVX-NEXT: vpmaxuw %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%1 = and <8 x i16> %a, <i16 255, i16 255, i16 255, i16 255, i16 255, i16 255, i16 255, i16 255>
%2 = lshr <8 x i16> %b, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
%3 = icmp ugt <8 x i16> %1, %2
%4 = select <8 x i1> %3, <8 x i16> %1, <8 x i16> %2
ret <8 x i16> %4
}