xref: /llvm-project/llvm/test/CodeGen/X86/pr93000.ll (revision e6bf48d11047e970cb24554a01b65b566d6b5d22)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3
2; RUN: llc < %s -mtriple=x86_64- -mcpu=x86-64-v4 | FileCheck %s
3
4define void @PR93000(ptr %a0, ptr %a1, ptr %a2, <32 x i16> %a3) {
5; CHECK-LABEL: PR93000:
6; CHECK:       # %bb.0: # %Entry
7; CHECK-NEXT:    movl (%rdi), %eax
8; CHECK-NEXT:    addq $4, %rdi
9; CHECK-NEXT:    .p2align 4
10; CHECK-NEXT:  .LBB0_1: # %Loop
11; CHECK-NEXT:    # =>This Inner Loop Header: Depth=1
12; CHECK-NEXT:    kmovd %eax, %k1
13; CHECK-NEXT:    knotd %k1, %k2
14; CHECK-NEXT:    vpblendmw (%rsi), %zmm0, %zmm1 {%k1}
15; CHECK-NEXT:    vmovdqu16 (%rdx), %zmm1 {%k2}
16; CHECK-NEXT:    vmovdqu64 %zmm1, (%rsi)
17; CHECK-NEXT:    movl (%rdi), %eax
18; CHECK-NEXT:    addq $4, %rdi
19; CHECK-NEXT:    testl %eax, %eax
20; CHECK-NEXT:    jne .LBB0_1
21; CHECK-NEXT:  # %bb.2: # %Then
22; CHECK-NEXT:    vzeroupper
23; CHECK-NEXT:    retq
24Entry:
25  %pre = load i32, ptr %a0, align 4
26  br label %Loop
27
28Loop:                                             ; preds = %Loop, %Entry
29  %p = phi i32 [ %limit, %Loop ], [ %pre, %Entry ]
30  %lsr.iv.pn = phi ptr [ %lsr.iv, %Loop ], [ %a0, %Entry ]
31  %lsr.iv = getelementptr i8, ptr %lsr.iv.pn, i64 4
32  %pn = xor i32 %p, -1
33  %m = bitcast i32 %p to <32 x i1>
34  %mn = bitcast i32 %pn to <32 x i1>
35  %mload0 = tail call <32 x i16> @llvm.masked.load.v32i16.p0(ptr %a1, i32 2, <32 x i1> %m, <32 x i16> %a3)
36  %mload1 = tail call <32 x i16> @llvm.masked.load.v32i16.p0(ptr %a2, i32 2, <32 x i1> %mn, <32 x i16> %mload0)
37  store <32 x i16> %mload1, ptr %a1, align 2
38  %limit = load i32, ptr %lsr.iv, align 4
39  %icmp = icmp eq i32 %limit, 0
40  br i1 %icmp, label %Then, label %Loop
41
42Then:                                             ; preds = %Loop
43  ret void
44}
45