[X86] Add test coverage for #89533

Author: RKSimon

llvm/test/CodeGen/X86/combine-or.ll

@@ -182,7 +182,108 @@ define i32 @or_and_multiuse_and_multiuse_i32(i32 %x, i32 %y) nounwind {
   ret i32 %r
 }
 
+define i64 @or_build_pair_not(i32 %a0, i32 %a1) {
+; CHECK-LABEL: or_build_pair_not:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $esi killed $esi def $rsi
+; CHECK-NEXT:    # kill: def $edi killed $edi def $rdi
+; CHECK-NEXT:    notl %edi
+; CHECK-NEXT:    notl %esi
+; CHECK-NEXT:    shlq $32, %rsi
+; CHECK-NEXT:    leaq (%rsi,%rdi), %rax
+; CHECK-NEXT:    retq
+  %n0 = xor i32 %a0, -1
+  %n1 = xor i32 %a1, -1
+  %x0 = zext i32 %n0 to i64
+  %x1 = zext i32 %n1 to i64
+  %hi = shl i64 %x1, 32
+  %r = or i64 %hi, %x0
+  ret i64 %r
+}
+
+define i64 @PR89533(<64 x i8> %a0) {
+; SSE-LABEL: PR89533:
+; SSE:       # %bb.0:
+; SSE-NEXT:    movdqa {{.*#+}} xmm4 = [95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95]
+; SSE-NEXT:    pcmpeqb %xmm4, %xmm0
+; SSE-NEXT:    pmovmskb %xmm0, %eax
+; SSE-NEXT:    xorl $65535, %eax # imm = 0xFFFF
+; SSE-NEXT:    pcmpeqb %xmm4, %xmm1
+; SSE-NEXT:    pmovmskb %xmm1, %ecx
+; SSE-NEXT:    notl %ecx
+; SSE-NEXT:    shll $16, %ecx
+; SSE-NEXT:    orl %eax, %ecx
+; SSE-NEXT:    pcmpeqb %xmm4, %xmm2
+; SSE-NEXT:    pmovmskb %xmm2, %edx
+; SSE-NEXT:    xorl $65535, %edx # imm = 0xFFFF
+; SSE-NEXT:    pcmpeqb %xmm4, %xmm3
+; SSE-NEXT:    pmovmskb %xmm3, %eax
+; SSE-NEXT:    notl %eax
+; SSE-NEXT:    shll $16, %eax
+; SSE-NEXT:    orl %edx, %eax
+; SSE-NEXT:    shlq $32, %rax
+; SSE-NEXT:    orq %rcx, %rax
+; SSE-NEXT:    je .LBB11_2
+; SSE-NEXT:  # %bb.1: # %cond.false
+; SSE-NEXT:    rep bsfq %rax, %rax
+; SSE-NEXT:    retq
+; SSE-NEXT:  .LBB11_2: # %cond.end
+; SSE-NEXT:    movl $64, %eax
+; SSE-NEXT:    retq
+;
+; AVX1-LABEL: PR89533:
+; AVX1:       # %bb.0:
+; AVX1-NEXT:    vbroadcastss {{.*#+}} xmm2 = [95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95]
+; AVX1-NEXT:    vpcmpeqb %xmm2, %xmm0, %xmm3
+; AVX1-NEXT:    vpmovmskb %xmm3, %eax
+; AVX1-NEXT:    xorl $65535, %eax # imm = 0xFFFF
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm0
+; AVX1-NEXT:    vpcmpeqb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpmovmskb %xmm0, %ecx
+; AVX1-NEXT:    notl %ecx
+; AVX1-NEXT:    shll $16, %ecx
+; AVX1-NEXT:    orl %eax, %ecx
+; AVX1-NEXT:    vpcmpeqb %xmm2, %xmm1, %xmm0
+; AVX1-NEXT:    vpmovmskb %xmm0, %edx
+; AVX1-NEXT:    xorl $65535, %edx # imm = 0xFFFF
+; AVX1-NEXT:    vextractf128 $1, %ymm1, %xmm0
+; AVX1-NEXT:    vpcmpeqb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpmovmskb %xmm0, %eax
+; AVX1-NEXT:    notl %eax
+; AVX1-NEXT:    shll $16, %eax
+; AVX1-NEXT:    orl %edx, %eax
+; AVX1-NEXT:    shlq $32, %rax
+; AVX1-NEXT:    orq %rcx, %rax
+; AVX1-NEXT:    je .LBB11_2
+; AVX1-NEXT:  # %bb.1: # %cond.false
+; AVX1-NEXT:    rep bsfq %rax, %rax
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+; AVX1-NEXT:  .LBB11_2: # %cond.end
+; AVX1-NEXT:    movl $64, %eax
+; AVX1-NEXT:    vzeroupper
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: PR89533:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpbroadcastb {{.*#+}} ymm2 = [95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95,95]
+; AVX2-NEXT:    vpcmpeqb %ymm2, %ymm0, %ymm0
+; AVX2-NEXT:    vpmovmskb %ymm0, %eax
+; AVX2-NEXT:    notl %eax
+; AVX2-NEXT:    vpcmpeqb %ymm2, %ymm1, %ymm0
+; AVX2-NEXT:    vpmovmskb %ymm0, %ecx
+; AVX2-NEXT:    notl %ecx
+; AVX2-NEXT:    shlq $32, %rcx
+; AVX2-NEXT:    orq %rax, %rcx
+; AVX2-NEXT:    xorl %eax, %eax
+; AVX2-NEXT:    tzcntq %rcx, %rax
+; AVX2-NEXT:    vzeroupper
+; AVX2-NEXT:    retq
+  %cmp = icmp ne <64 x i8> %a0, <i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95, i8 95>
+  %mask = bitcast <64 x i1> %cmp to i64
+  %tz = tail call i64 @llvm.cttz.i64(i64 %mask, i1 false)
+  ret i64 %tz
+}
+
 declare void @use_i32(i32)
-;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
-; AVX1: {{.*}}
-; AVX2: {{.*}}
+