From fa4347261e76e37f9632fe010e2e7beae97d117b Mon Sep 17 00:00:00 2001
From: "Luo, Yuanke" <yuanke.luo@intel.com>
Date: Thu, 21 Apr 2022 21:38:55 +0800
Subject: [PATCH] [X86] Add test case for SetCCMOVMSK combine.

Create 2 users for MOVMSK to test if compiler would perform the combine
"MOVMSK(CONCAT(X,Y)) == 0 ->  MOVMSK(OR(X,Y))".
---
 .../test/CodeGen/X86/vector-compare-any_of.ll | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/llvm/test/CodeGen/X86/vector-compare-any_of.ll b/llvm/test/CodeGen/X86/vector-compare-any_of.ll
index 5a5efa7735da..166584420837 100644
--- a/llvm/test/CodeGen/X86/vector-compare-any_of.ll
+++ b/llvm/test/CodeGen/X86/vector-compare-any_of.ll
@@ -1330,3 +1330,58 @@ define i1 @bool_reduction_v32i8(<32 x i8> %x, <32 x i8> %y) {
   %g = extractelement <32 x i1> %f, i32 0
   ret i1 %g
 }
+
+define {i32, i1} @test_v16i8_muti_uses(<16 x i8> %x, <16 x i8>%y, <16 x i8> %z) {
+; SSE-LABEL: test_v16i8_muti_uses:
+; SSE:       # %bb.0:
+; SSE-NEXT:    pcmpeqb %xmm1, %xmm0
+; SSE-NEXT:    pcmpeqb %xmm1, %xmm2
+; SSE-NEXT:    pmovmskb %xmm0, %ecx
+; SSE-NEXT:    pmovmskb %xmm2, %eax
+; SSE-NEXT:    shll $16, %eax
+; SSE-NEXT:    orl %ecx, %eax
+; SSE-NEXT:    sete %dl
+; SSE-NEXT:    retq
+;
+; AVX1-LABEL: test_v16i8_muti_uses:
+; AVX1:       # %bb.0:
+; AVX1-NEXT:    vpcmpeqb %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpcmpeqb %xmm1, %xmm2, %xmm1
+; AVX1-NEXT:    vpmovmskb %xmm0, %ecx
+; AVX1-NEXT:    vpmovmskb %xmm1, %eax
+; AVX1-NEXT:    shll $16, %eax
+; AVX1-NEXT:    orl %ecx, %eax
+; AVX1-NEXT:    sete %dl
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: test_v16i8_muti_uses:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqb %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vpcmpeqb %xmm1, %xmm2, %xmm1
+; AVX2-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm2
+; AVX2-NEXT:    vpmovmskb %ymm2, %eax
+; AVX2-NEXT:    vpor %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vpmovmskb %xmm0, %ecx
+; AVX2-NEXT:    testl %ecx, %ecx
+; AVX2-NEXT:    sete %dl
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+;
+; AVX512-LABEL: test_v16i8_muti_uses:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqb %xmm1, %xmm0, %k0
+; AVX512-NEXT:    vpcmpeqb %xmm1, %xmm2, %k1
+; AVX512-NEXT:    kunpckwd %k0, %k1, %k0
+; AVX512-NEXT:    kortestd %k0, %k0
+; AVX512-NEXT:    kmovd %k0, %eax
+; AVX512-NEXT:    sete %dl
+; AVX512-NEXT:    retq
+  %t1 = icmp eq <16 x i8> %x, %y
+  %t2 = icmp eq <16 x i8> %z, %y
+  %a = shufflevector <16 x i1> %t1, <16 x i1> %t2, <32 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31>
+  %b = bitcast <32 x i1> %a to i32
+  %c = icmp eq i32 %b, 0
+  %r1 = insertvalue {i32, i1} poison, i32 %b, 0
+  %r2 = insertvalue {i32, i1} %r1, i1 %c, 1
+  ret {i32, i1} %r2
+}