[llvm] [LoongArch][NFC] Pre-commit tests for combining and(not) (PR #160830)
Zhaoxin Yang via llvm-commits
llvm-commits at lists.llvm.org
Sat Sep 27 18:43:07 PDT 2025
https://github.com/ylzsx updated https://github.com/llvm/llvm-project/pull/160830
>From 4ce4fd894d01caeb98d58a64c21bd9e4039d5701 Mon Sep 17 00:00:00 2001
From: yangzhaoxin <yangzhaoxin at loongson.cn>
Date: Fri, 26 Sep 2025 16:14:48 +0800
Subject: [PATCH 1/2] [LoongArch][NFC] Pre-commit tests for combining and(not)
---
.../CodeGen/LoongArch/lasx/and-not-combine.ll | 183 +++++++++++++++++-
.../CodeGen/LoongArch/lsx/and-not-combine.ll | 183 +++++++++++++++++-
2 files changed, 362 insertions(+), 4 deletions(-)
diff --git a/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll b/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll
index 67549599db2f3..225afecc9e26d 100644
--- a/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll
+++ b/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll
@@ -1,6 +1,6 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
-; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lasx < %s | FileCheck %s
-; RUN: llc --mtriple=loongarch64 --mattr=+lasx < %s | FileCheck %s
+; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lasx < %s | FileCheck %s --check-prefixes=CHECK,LA32
+; RUN: llc --mtriple=loongarch64 --mattr=+lasx < %s | FileCheck %s --check-prefixes=CHECK,LA64
define void @and_not_combine_v32i8(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
; CHECK-LABEL: and_not_combine_v32i8:
@@ -85,3 +85,182 @@ entry:
store <4 x i64> %and, ptr %res
ret void
}
+
+define void @pre_not_and_not_combine_v32i8(ptr %res, ptr %a, i8 %b) nounwind {
+; CHECK-LABEL: pre_not_and_not_combine_v32i8:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: nor $a1, $a2, $zero
+; CHECK-NEXT: xvreplgr2vr.b $xr1, $a1
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <32 x i8>, ptr %a
+ %b.not = xor i8 %b, -1
+ %b.not.ele = insertelement <32 x i8> poison, i8 %b.not, i64 0
+ %v1.not = shufflevector <32 x i8> %b.not.ele, <32 x i8> poison, <32 x i32> zeroinitializer
+ %v0.not = xor <32 x i8> %v0, splat (i8 -1)
+ %and = and <32 x i8> %v0.not, %v1.not
+ store <32 x i8> %and, ptr %res
+ ret void
+}
+
+define void @post_not_and_not_combine_v32i8(ptr %res, ptr %a, i8 %b) nounwind {
+; CHECK-LABEL: post_not_and_not_combine_v32i8:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvreplgr2vr.b $xr1, $a2
+; CHECK-NEXT: xvxori.b $xr1, $xr1, 255
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <32 x i8>, ptr %a
+ %b.ele = insertelement <32 x i8> poison, i8 %b, i64 0
+ %v1 = shufflevector <32 x i8> %b.ele, <32 x i8> poison, <32 x i32> zeroinitializer
+ %v0.not = xor <32 x i8> %v0, splat (i8 -1)
+ %v1.not = xor <32 x i8> %v1, splat (i8 -1)
+ %and = and <32 x i8> %v0.not, %v1.not
+ store <32 x i8> %and, ptr %res
+ ret void
+}
+
+define void @pre_not_and_not_combine_v16i16(ptr %res, ptr %a, i16 %b) nounwind {
+; CHECK-LABEL: pre_not_and_not_combine_v16i16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: nor $a1, $a2, $zero
+; CHECK-NEXT: xvreplgr2vr.h $xr1, $a1
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <16 x i16>, ptr %a
+ %b.not = xor i16 %b, -1
+ %b.not.ele = insertelement <16 x i16> poison, i16 %b.not, i64 0
+ %v1.not = shufflevector <16 x i16> %b.not.ele, <16 x i16> poison, <16 x i32> zeroinitializer
+ %v0.not = xor <16 x i16> %v0, splat (i16 -1)
+ %and = and <16 x i16> %v0.not, %v1.not
+ store <16 x i16> %and, ptr %res
+ ret void
+}
+
+define void @post_not_and_not_combine_v16i16(ptr %res, ptr %a, i16 %b) nounwind {
+; CHECK-LABEL: post_not_and_not_combine_v16i16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvreplgr2vr.h $xr1, $a2
+; CHECK-NEXT: xvrepli.b $xr2, -1
+; CHECK-NEXT: xvxor.v $xr1, $xr1, $xr2
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <16 x i16>, ptr %a
+ %b.ele = insertelement <16 x i16> poison, i16 %b, i64 0
+ %v1 = shufflevector <16 x i16> %b.ele, <16 x i16> poison, <16 x i32> zeroinitializer
+ %v0.not = xor <16 x i16> %v0, splat (i16 -1)
+ %v1.not = xor <16 x i16> %v1, splat (i16 -1)
+ %and = and <16 x i16> %v0.not, %v1.not
+ store <16 x i16> %and, ptr %res
+ ret void
+}
+
+define void @pre_not_and_not_combine_v8i32(ptr %res, ptr %a, i32 %b) nounwind {
+; CHECK-LABEL: pre_not_and_not_combine_v8i32:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: nor $a1, $a2, $zero
+; CHECK-NEXT: xvreplgr2vr.w $xr1, $a1
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <8 x i32>, ptr %a
+ %b.not = xor i32 %b, -1
+ %b.not.ele = insertelement <8 x i32> poison, i32 %b.not, i64 0
+ %v1.not = shufflevector <8 x i32> %b.not.ele, <8 x i32> poison, <8 x i32> zeroinitializer
+ %v0.not = xor <8 x i32> %v0, splat (i32 -1)
+ %and = and <8 x i32> %v0.not, %v1.not
+ store <8 x i32> %and, ptr %res
+ ret void
+}
+
+define void @post_not_and_not_combine_v8i32(ptr %res, ptr %a, i32 %b) nounwind {
+; CHECK-LABEL: post_not_and_not_combine_v8i32:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvreplgr2vr.w $xr1, $a2
+; CHECK-NEXT: xvrepli.b $xr2, -1
+; CHECK-NEXT: xvxor.v $xr1, $xr1, $xr2
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <8 x i32>, ptr %a
+ %b.ele = insertelement <8 x i32> poison, i32 %b, i64 0
+ %v1 = shufflevector <8 x i32> %b.ele, <8 x i32> poison, <8 x i32> zeroinitializer
+ %v0.not = xor <8 x i32> %v0, splat (i32 -1)
+ %v1.not = xor <8 x i32> %v1, splat (i32 -1)
+ %and = and <8 x i32> %v0.not, %v1.not
+ store <8 x i32> %and, ptr %res
+ ret void
+}
+
+define void @pre_not_and_not_combine_v4i64(ptr %res, ptr %a, i64 %b) nounwind {
+; LA32-LABEL: pre_not_and_not_combine_v4i64:
+; LA32: # %bb.0:
+; LA32-NEXT: xvld $xr0, $a1, 0
+; LA32-NEXT: nor $a1, $a3, $zero
+; LA32-NEXT: nor $a2, $a2, $zero
+; LA32-NEXT: vinsgr2vr.w $vr1, $a2, 0
+; LA32-NEXT: vinsgr2vr.w $vr1, $a1, 1
+; LA32-NEXT: xvreplve0.d $xr1, $xr1
+; LA32-NEXT: xvandn.v $xr0, $xr0, $xr1
+; LA32-NEXT: xvst $xr0, $a0, 0
+; LA32-NEXT: ret
+;
+; LA64-LABEL: pre_not_and_not_combine_v4i64:
+; LA64: # %bb.0:
+; LA64-NEXT: xvld $xr0, $a1, 0
+; LA64-NEXT: nor $a1, $a2, $zero
+; LA64-NEXT: xvreplgr2vr.d $xr1, $a1
+; LA64-NEXT: xvandn.v $xr0, $xr0, $xr1
+; LA64-NEXT: xvst $xr0, $a0, 0
+; LA64-NEXT: ret
+ %v0 = load <4 x i64>, ptr %a
+ %b.not = xor i64 %b, -1
+ %b.not.ele = insertelement <4 x i64> poison, i64 %b.not, i64 0
+ %v1.not = shufflevector <4 x i64> %b.not.ele, <4 x i64> poison, <4 x i32> zeroinitializer
+ %v0.not = xor <4 x i64> %v0, splat (i64 -1)
+ %and = and <4 x i64> %v0.not, %v1.not
+ store <4 x i64> %and, ptr %res
+ ret void
+}
+
+define void @post_not_and_not_combine_v4i64(ptr %res, ptr %a, i64 %b) nounwind {
+; LA32-LABEL: post_not_and_not_combine_v4i64:
+; LA32: # %bb.0:
+; LA32-NEXT: xvld $xr0, $a1, 0
+; LA32-NEXT: vinsgr2vr.w $vr1, $a2, 0
+; LA32-NEXT: vinsgr2vr.w $vr1, $a3, 1
+; LA32-NEXT: xvreplve0.d $xr1, $xr1
+; LA32-NEXT: xvrepli.b $xr2, -1
+; LA32-NEXT: xvxor.v $xr1, $xr1, $xr2
+; LA32-NEXT: xvandn.v $xr0, $xr0, $xr1
+; LA32-NEXT: xvst $xr0, $a0, 0
+; LA32-NEXT: ret
+;
+; LA64-LABEL: post_not_and_not_combine_v4i64:
+; LA64: # %bb.0:
+; LA64-NEXT: xvld $xr0, $a1, 0
+; LA64-NEXT: xvreplgr2vr.d $xr1, $a2
+; LA64-NEXT: xvrepli.b $xr2, -1
+; LA64-NEXT: xvxor.v $xr1, $xr1, $xr2
+; LA64-NEXT: xvandn.v $xr0, $xr0, $xr1
+; LA64-NEXT: xvst $xr0, $a0, 0
+; LA64-NEXT: ret
+ %v0 = load <4 x i64>, ptr %a
+ %b.ele = insertelement <4 x i64> poison, i64 %b, i64 0
+ %v1 = shufflevector <4 x i64> %b.ele, <4 x i64> poison, <4 x i32> zeroinitializer
+ %v0.not = xor <4 x i64> %v0, splat (i64 -1)
+ %v1.not = xor <4 x i64> %v1, splat (i64 -1)
+ %and = and <4 x i64> %v0.not, %v1.not
+ store <4 x i64> %and, ptr %res
+ ret void
+}
diff --git a/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll b/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll
index 3c6d34505e114..098ee3a6e9e57 100644
--- a/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll
+++ b/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll
@@ -1,6 +1,6 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
-; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lsx < %s | FileCheck %s
-; RUN: llc --mtriple=loongarch64 --mattr=+lsx < %s | FileCheck %s
+; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lsx < %s | FileCheck %s --check-prefixes=CHECK,LA32
+; RUN: llc --mtriple=loongarch64 --mattr=+lsx < %s | FileCheck %s --check-prefixes=CHECK,LA64
define void @and_not_combine_v16i8(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
; CHECK-LABEL: and_not_combine_v16i8:
@@ -85,3 +85,182 @@ entry:
store <2 x i64> %and, ptr %res
ret void
}
+
+define void @pre_not_and_not_combine_v16i8(ptr %res, ptr %a, i8 %b) nounwind {
+; CHECK-LABEL: pre_not_and_not_combine_v16i8:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: nor $a1, $a2, $zero
+; CHECK-NEXT: vreplgr2vr.b $vr1, $a1
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <16 x i8>, ptr %a
+ %b.not = xor i8 %b, -1
+ %b.not.ele = insertelement <16 x i8> poison, i8 %b.not, i64 0
+ %v1.not = shufflevector <16 x i8> %b.not.ele, <16 x i8> poison, <16 x i32> zeroinitializer
+ %v0.not = xor <16 x i8> %v0, splat (i8 -1)
+ %and = and <16 x i8> %v0.not, %v1.not
+ store <16 x i8> %and, ptr %res
+ ret void
+}
+
+define void @post_not_and_not_combine_v16i8(ptr %res, ptr %a, i8 %b) nounwind {
+; CHECK-LABEL: post_not_and_not_combine_v16i8:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: vreplgr2vr.b $vr1, $a2
+; CHECK-NEXT: vxori.b $vr1, $vr1, 255
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <16 x i8>, ptr %a
+ %b.ele = insertelement <16 x i8> poison, i8 %b, i64 0
+ %v1 = shufflevector <16 x i8> %b.ele, <16 x i8> poison, <16 x i32> zeroinitializer
+ %v0.not = xor <16 x i8> %v0, splat (i8 -1)
+ %v1.not = xor <16 x i8> %v1, splat (i8 -1)
+ %and = and <16 x i8> %v0.not, %v1.not
+ store <16 x i8> %and, ptr %res
+ ret void
+}
+
+define void @pre_not_and_not_combine_v8i16(ptr %res, ptr %a, i16 %b) nounwind {
+; CHECK-LABEL: pre_not_and_not_combine_v8i16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: nor $a1, $a2, $zero
+; CHECK-NEXT: vreplgr2vr.h $vr1, $a1
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <8 x i16>, ptr %a
+ %b.not = xor i16 %b, -1
+ %b.not.ele = insertelement <8 x i16> poison, i16 %b.not, i64 0
+ %v1.not = shufflevector <8 x i16> %b.not.ele, <8 x i16> poison, <8 x i32> zeroinitializer
+ %v0.not = xor <8 x i16> %v0, splat (i16 -1)
+ %and = and <8 x i16> %v0.not, %v1.not
+ store <8 x i16> %and, ptr %res
+ ret void
+}
+
+define void @post_not_and_not_combine_v8i16(ptr %res, ptr %a, i16 %b) nounwind {
+; CHECK-LABEL: post_not_and_not_combine_v8i16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: vreplgr2vr.h $vr1, $a2
+; CHECK-NEXT: vrepli.b $vr2, -1
+; CHECK-NEXT: vxor.v $vr1, $vr1, $vr2
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <8 x i16>, ptr %a
+ %b.ele = insertelement <8 x i16> poison, i16 %b, i64 0
+ %v1 = shufflevector <8 x i16> %b.ele, <8 x i16> poison, <8 x i32> zeroinitializer
+ %v0.not = xor <8 x i16> %v0, splat (i16 -1)
+ %v1.not = xor <8 x i16> %v1, splat (i16 -1)
+ %and = and <8 x i16> %v0.not, %v1.not
+ store <8 x i16> %and, ptr %res
+ ret void
+}
+
+define void @pre_not_and_not_combine_v4i32(ptr %res, ptr %a, i32 %b) nounwind {
+; CHECK-LABEL: pre_not_and_not_combine_v4i32:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: nor $a1, $a2, $zero
+; CHECK-NEXT: vreplgr2vr.w $vr1, $a1
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <4 x i32>, ptr %a
+ %b.not = xor i32 %b, -1
+ %b.not.ele = insertelement <4 x i32> poison, i32 %b.not, i64 0
+ %v1.not = shufflevector <4 x i32> %b.not.ele, <4 x i32> poison, <4 x i32> zeroinitializer
+ %v0.not = xor <4 x i32> %v0, splat (i32 -1)
+ %and = and <4 x i32> %v0.not, %v1.not
+ store <4 x i32> %and, ptr %res
+ ret void
+}
+
+define void @post_not_and_not_combine_v4i32(ptr %res, ptr %a, i32 %b) nounwind {
+; CHECK-LABEL: post_not_and_not_combine_v4i32:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: vreplgr2vr.w $vr1, $a2
+; CHECK-NEXT: vrepli.b $vr2, -1
+; CHECK-NEXT: vxor.v $vr1, $vr1, $vr2
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <4 x i32>, ptr %a
+ %b.ele = insertelement <4 x i32> poison, i32 %b, i64 0
+ %v1 = shufflevector <4 x i32> %b.ele, <4 x i32> poison, <4 x i32> zeroinitializer
+ %v0.not = xor <4 x i32> %v0, splat (i32 -1)
+ %v1.not = xor <4 x i32> %v1, splat (i32 -1)
+ %and = and <4 x i32> %v0.not, %v1.not
+ store <4 x i32> %and, ptr %res
+ ret void
+}
+
+define void @pre_not_and_not_combine_v2i64(ptr %res, ptr %a, i64 %b) nounwind {
+; LA32-LABEL: pre_not_and_not_combine_v2i64:
+; LA32: # %bb.0:
+; LA32-NEXT: vld $vr0, $a1, 0
+; LA32-NEXT: nor $a1, $a3, $zero
+; LA32-NEXT: nor $a2, $a2, $zero
+; LA32-NEXT: vinsgr2vr.w $vr1, $a2, 0
+; LA32-NEXT: vinsgr2vr.w $vr1, $a1, 1
+; LA32-NEXT: vreplvei.d $vr1, $vr1, 0
+; LA32-NEXT: vandn.v $vr0, $vr0, $vr1
+; LA32-NEXT: vst $vr0, $a0, 0
+; LA32-NEXT: ret
+;
+; LA64-LABEL: pre_not_and_not_combine_v2i64:
+; LA64: # %bb.0:
+; LA64-NEXT: vld $vr0, $a1, 0
+; LA64-NEXT: nor $a1, $a2, $zero
+; LA64-NEXT: vreplgr2vr.d $vr1, $a1
+; LA64-NEXT: vandn.v $vr0, $vr0, $vr1
+; LA64-NEXT: vst $vr0, $a0, 0
+; LA64-NEXT: ret
+ %v0 = load <2 x i64>, ptr %a
+ %b.not = xor i64 %b, -1
+ %b.not.ele = insertelement <2 x i64> poison, i64 %b.not, i64 0
+ %v1.not = shufflevector <2 x i64> %b.not.ele, <2 x i64> poison, <2 x i32> zeroinitializer
+ %v0.not = xor <2 x i64> %v0, splat (i64 -1)
+ %and = and <2 x i64> %v0.not, %v1.not
+ store <2 x i64> %and, ptr %res
+ ret void
+}
+
+define void @post_not_and_not_combine_v2i64(ptr %res, ptr %a, i64 %b) nounwind {
+; LA32-LABEL: post_not_and_not_combine_v2i64:
+; LA32: # %bb.0:
+; LA32-NEXT: vld $vr0, $a1, 0
+; LA32-NEXT: vinsgr2vr.w $vr1, $a2, 0
+; LA32-NEXT: vinsgr2vr.w $vr1, $a3, 1
+; LA32-NEXT: vreplvei.d $vr1, $vr1, 0
+; LA32-NEXT: vrepli.b $vr2, -1
+; LA32-NEXT: vxor.v $vr1, $vr1, $vr2
+; LA32-NEXT: vandn.v $vr0, $vr0, $vr1
+; LA32-NEXT: vst $vr0, $a0, 0
+; LA32-NEXT: ret
+;
+; LA64-LABEL: post_not_and_not_combine_v2i64:
+; LA64: # %bb.0:
+; LA64-NEXT: vld $vr0, $a1, 0
+; LA64-NEXT: vreplgr2vr.d $vr1, $a2
+; LA64-NEXT: vrepli.b $vr2, -1
+; LA64-NEXT: vxor.v $vr1, $vr1, $vr2
+; LA64-NEXT: vandn.v $vr0, $vr0, $vr1
+; LA64-NEXT: vst $vr0, $a0, 0
+; LA64-NEXT: ret
+ %v0 = load <2 x i64>, ptr %a
+ %b.ele = insertelement <2 x i64> poison, i64 %b, i64 0
+ %v1 = shufflevector <2 x i64> %b.ele, <2 x i64> poison, <2 x i32> zeroinitializer
+ %v0.not = xor <2 x i64> %v0, splat (i64 -1)
+ %v1.not = xor <2 x i64> %v1, splat (i64 -1)
+ %and = and <2 x i64> %v0.not, %v1.not
+ store <2 x i64> %and, ptr %res
+ ret void
+}
>From 0dffa25e1bd098994393edd6f244b7e0af29d561 Mon Sep 17 00:00:00 2001
From: yangzhaoxin <yangzhaoxin at loongson.cn>
Date: Sun, 28 Sep 2025 09:41:06 +0800
Subject: [PATCH 2/2] Add tests for splatimm.
---
.../CodeGen/LoongArch/lasx/and-not-combine.ll | 60 +++++++++++++++++++
.../CodeGen/LoongArch/lsx/and-not-combine.ll | 60 +++++++++++++++++++
2 files changed, 120 insertions(+)
diff --git a/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll b/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll
index 225afecc9e26d..ca19123b6965b 100644
--- a/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll
+++ b/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll
@@ -264,3 +264,63 @@ define void @post_not_and_not_combine_v4i64(ptr %res, ptr %a, i64 %b) nounwind {
store <4 x i64> %and, ptr %res
ret void
}
+
+define void @and_not_combine_splatimm_v32i8(ptr %res, ptr %a0) nounwind {
+; CHECK-LABEL: and_not_combine_splatimm_v32i8:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvrepli.b $xr1, -4
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <32 x i8>, ptr %a0
+ %and = and <32 x i8> %v0, splat (i8 -4)
+ %xor = xor <32 x i8> %and, splat (i8 -4)
+ store <32 x i8> %xor, ptr %res
+ ret void
+}
+
+define void @and_not_combine_splatimm_v16i16(ptr %res, ptr %a0) nounwind {
+; CHECK-LABEL: and_not_combine_splatimm_v16i16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvrepli.h $xr1, -4
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <16 x i16>, ptr %a0
+ %and = and <16 x i16> %v0, splat (i16 -4)
+ %xor = xor <16 x i16> %and, splat (i16 -4)
+ store <16 x i16> %xor, ptr %res
+ ret void
+}
+
+define void @and_not_combine_splatimm_v8i32(ptr %res, ptr %a0) nounwind {
+; CHECK-LABEL: and_not_combine_splatimm_v8i32:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvrepli.w $xr1, -4
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <8 x i32>, ptr %a0
+ %and = and <8 x i32> %v0, splat (i32 -4)
+ %xor = xor <8 x i32> %and, splat (i32 -4)
+ store <8 x i32> %xor, ptr %res
+ ret void
+}
+
+define void @and_not_combine_splatimm_v4i64(ptr %res, ptr %a0) nounwind {
+; CHECK-LABEL: and_not_combine_splatimm_v4i64:
+; CHECK: # %bb.0:
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvrepli.d $xr1, -4
+; CHECK-NEXT: xvandn.v $xr0, $xr0, $xr1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <4 x i64>, ptr %a0
+ %and = and <4 x i64> %v0, splat (i64 -4)
+ %xor = xor <4 x i64> %and, splat (i64 -4)
+ store <4 x i64> %xor, ptr %res
+ ret void
+}
diff --git a/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll b/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll
index 098ee3a6e9e57..3ee184694e5ad 100644
--- a/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll
+++ b/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll
@@ -264,3 +264,63 @@ define void @post_not_and_not_combine_v2i64(ptr %res, ptr %a, i64 %b) nounwind {
store <2 x i64> %and, ptr %res
ret void
}
+
+define void @and_not_combine_splatimm_v16i8(ptr %res, ptr %a0) nounwind {
+; CHECK-LABEL: and_not_combine_splatimm_v16i8:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: vrepli.b $vr1, -4
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <16 x i8>, ptr %a0
+ %and = and <16 x i8> %v0, splat (i8 -4)
+ %xor = xor <16 x i8> %and, splat (i8 -4)
+ store <16 x i8> %xor, ptr %res
+ ret void
+}
+
+define void @and_not_combine_splatimm_v8i16(ptr %res, ptr %a0) nounwind {
+; CHECK-LABEL: and_not_combine_splatimm_v8i16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: vrepli.h $vr1, -4
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <8 x i16>, ptr %a0
+ %and = and <8 x i16> %v0, splat (i16 -4)
+ %xor = xor <8 x i16> %and, splat (i16 -4)
+ store <8 x i16> %xor, ptr %res
+ ret void
+}
+
+define void @and_not_combine_splatimm_v4i32(ptr %res, ptr %a0) nounwind {
+; CHECK-LABEL: and_not_combine_splatimm_v4i32:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: vrepli.w $vr1, -4
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <4 x i32>, ptr %a0
+ %and = and <4 x i32> %v0, splat (i32 -4)
+ %xor = xor <4 x i32> %and, splat (i32 -4)
+ store <4 x i32> %xor, ptr %res
+ ret void
+}
+
+define void @and_not_combine_splatimm_v2i64(ptr %res, ptr %a0) nounwind {
+; CHECK-LABEL: and_not_combine_splatimm_v2i64:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vld $vr0, $a1, 0
+; CHECK-NEXT: vrepli.d $vr1, -4
+; CHECK-NEXT: vandn.v $vr0, $vr0, $vr1
+; CHECK-NEXT: vst $vr0, $a0, 0
+; CHECK-NEXT: ret
+ %v0 = load <2 x i64>, ptr %a0
+ %and = and <2 x i64> %v0, splat (i64 -4)
+ %xor = xor <2 x i64> %and, splat (i64 -4)
+ store <2 x i64> %xor, ptr %res
+ ret void
+}
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