[llvm] f7e82e4 - [NFC][X86] Add test showing that legal `GATHER`'s are expoanded on Znver3

[Roman Lebedev via llvm-commits]

Author: Roman Lebedev
Date: 2021-09-27T22:41:09+03:00
New Revision: f7e82e4fa849376ea9226220847a098dc92d74a0

URL: https://github.com/llvm/llvm-project/commit/f7e82e4fa849376ea9226220847a098dc92d74a0
DIFF: https://github.com/llvm/llvm-project/commit/f7e82e4fa849376ea9226220847a098dc92d74a0.diff

LOG: [NFC][X86] Add test showing that legal `GATHER`'s are expoanded on Znver3

Added: 
    llvm/test/CodeGen/X86/znver3-gather.ll

Modified: 
    

Removed: 
    


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diff  --git a/llvm/test/CodeGen/X86/znver3-gather.ll b/llvm/test/CodeGen/X86/znver3-gather.ll
new file mode 100644
index 000000000000..21dc4be76490
--- /dev/null
+++ b/llvm/test/CodeGen/X86/znver3-gather.ll
@@ -0,0 +1,41 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=znver3 | FileCheck %s --check-prefix=X64
+
+define <8 x i32> @src(i32* %base, <8 x i32> %offsets) {
+; X64-LABEL: src:
+; X64:       # %bb.0:
+; X64-NEXT:    vextracti128 $1, %ymm0, %xmm2
+; X64-NEXT:    vpmovsxdq %xmm0, %ymm0
+; X64-NEXT:    vmovq %rdi, %xmm1
+; X64-NEXT:    vpbroadcastq %xmm1, %ymm1
+; X64-NEXT:    vpmovsxdq %xmm2, %ymm2
+; X64-NEXT:    vpsllq $2, %ymm0, %ymm0
+; X64-NEXT:    vpaddq %ymm0, %ymm1, %ymm0
+; X64-NEXT:    vmovq %xmm0, %r8
+; X64-NEXT:    vpextrq $1, %xmm0, %r9
+; X64-NEXT:    vextracti128 $1, %ymm0, %xmm0
+; X64-NEXT:    vpsllq $2, %ymm2, %ymm2
+; X64-NEXT:    vpaddq %ymm2, %ymm1, %ymm2
+; X64-NEXT:    vmovd {{.*#+}} xmm1 = mem[0],zero,zero,zero
+; X64-NEXT:    vpextrq $1, %xmm0, %r10
+; X64-NEXT:    vmovq %xmm0, %rsi
+; X64-NEXT:    vextracti128 $1, %ymm2, %xmm0
+; X64-NEXT:    vmovq %xmm2, %rdi
+; X64-NEXT:    vpextrq $1, %xmm2, %rax
+; X64-NEXT:    vpinsrd $1, (%r9), %xmm1, %xmm1
+; X64-NEXT:    vmovq %xmm0, %rcx
+; X64-NEXT:    vpextrq $1, %xmm0, %rdx
+; X64-NEXT:    vmovd {{.*#+}} xmm0 = mem[0],zero,zero,zero
+; X64-NEXT:    vpinsrd $2, (%rsi), %xmm1, %xmm1
+; X64-NEXT:    vpinsrd $1, (%rax), %xmm0, %xmm0
+; X64-NEXT:    vpinsrd $3, (%r10), %xmm1, %xmm1
+; X64-NEXT:    vpinsrd $2, (%rcx), %xmm0, %xmm0
+; X64-NEXT:    vpinsrd $3, (%rdx), %xmm0, %xmm0
+; X64-NEXT:    vinserti128 $1, %xmm0, %ymm1, %ymm0
+; X64-NEXT:    retq
+  %ptrs = getelementptr inbounds i32, i32* %base, <8 x i32> %offsets
+  %wide.masked.gather = call <8 x i32> @llvm.masked.gather.v8i32.v8p0i32(<8 x i32*> %ptrs, i32 4, <8 x i1> <i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true>, <8 x i32> undef)
+  ret <8 x i32> %wide.masked.gather
+}
+
+declare <8 x i32> @llvm.masked.gather.v8i32.v8p0i32(<8 x i32*>, i32 immarg, <8 x i1>, <8 x i32>)