[llvm] [LoongArch][NFC] Add tests for 256-bit vector broadcast (PR #169268)
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Sun Nov 23 18:45:46 PST 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-loongarch
Author: ZhaoQi (zhaoqi5)
<details>
<summary>Changes</summary>
---
Full diff: https://github.com/llvm/llvm-project/pull/169268.diff
1 Files Affected:
- (added) llvm/test/CodeGen/LoongArch/lasx/ir-instruction/shuffle-broadcast.ll (+179)
``````````diff
diff --git a/llvm/test/CodeGen/LoongArch/lasx/ir-instruction/shuffle-broadcast.ll b/llvm/test/CodeGen/LoongArch/lasx/ir-instruction/shuffle-broadcast.ll
new file mode 100644
index 0000000000000..5eae364fd40cd
--- /dev/null
+++ b/llvm/test/CodeGen/LoongArch/lasx/ir-instruction/shuffle-broadcast.ll
@@ -0,0 +1,179 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
+; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lasx %s -o - | FileCheck %s
+; RUN: llc --mtriple=loongarch64 --mattr=+lasx %s -o - | FileCheck %s
+
+define void @broadcast0_v32i8(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast0_v32i8:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 68
+; CHECK-NEXT: xvrepl128vei.b $xr0, $xr0, 0
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <32 x i8>, ptr %a
+ %b = shufflevector <32 x i8> %va, <32 x i8> poison, <32 x i32> <i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0>
+ store <32 x i8> %b, ptr %res
+ ret void
+}
+
+define void @broadcast_v32i8(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast_v32i8:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 238
+; CHECK-NEXT: xvrepl128vei.b $xr0, $xr0, 13
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <32 x i8>, ptr %a
+ %b = shufflevector <32 x i8> %va, <32 x i8> poison, <32 x i32> <i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29, i32 29>
+ store <32 x i8> %b, ptr %res
+ ret void
+}
+
+define void @broadcast0_v16i16(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast0_v16i16:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 68
+; CHECK-NEXT: xvrepl128vei.h $xr0, $xr0, 0
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <16 x i16>, ptr %a
+ %b = shufflevector <16 x i16> poison, <16 x i16> %va, <16 x i32> <i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16>
+ store <16 x i16> %b, ptr %res
+ ret void
+}
+
+define void @broadcast_v16i16(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast_v16i16:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 68
+; CHECK-NEXT: xvrepl128vei.h $xr0, $xr0, 3
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <16 x i16>, ptr %a
+ %b = shufflevector <16 x i16> poison, <16 x i16> %va, <16 x i32> <i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19, i32 19>
+ store <16 x i16> %b, ptr %res
+ ret void
+}
+
+define void @broadcast0_v8i32(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast0_v8i32:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 68
+; CHECK-NEXT: xvrepl128vei.w $xr0, $xr0, 0
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <8 x i32>, ptr %a
+ %b = shufflevector <8 x i32> poison, <8 x i32> %va, <8 x i32> <i32 8, i32 8, i32 8, i32 8, i32 8, i32 8, i32 8, i32 8>
+ store <8 x i32> %b, ptr %res
+ ret void
+}
+
+define void @broadcast_v8i32(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast_v8i32:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 238
+; CHECK-NEXT: xvrepl128vei.w $xr0, $xr0, 1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <8 x i32>, ptr %a
+ %b = shufflevector <8 x i32> %va, <8 x i32> poison, <8 x i32> <i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5>
+ store <8 x i32> %b, ptr %res
+ ret void
+}
+
+define void @broadcast0_v8f32(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast0_v8f32:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 68
+; CHECK-NEXT: xvrepl128vei.w $xr0, $xr0, 0
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <8 x float>, ptr %a
+ %b = shufflevector <8 x float> %va, <8 x float> poison, <8 x i32> <i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0>
+ store <8 x float> %b, ptr %res
+ ret void
+}
+
+define void @broadcast_v8f32(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast_v8f32:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 68
+; CHECK-NEXT: xvrepl128vei.w $xr0, $xr0, 1
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <8 x float>, ptr %a
+ %b = shufflevector <8 x float> %va, <8 x float> poison, <8 x i32> <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
+ store <8 x float> %b, ptr %res
+ ret void
+}
+
+define void @broadcast0_v4i64(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast0_v4i64:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 0
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <4 x i64>, ptr %a
+ %b = shufflevector <4 x i64> %va, <4 x i64> poison, <4 x i32> <i32 0, i32 0, i32 0, i32 0>
+ store <4 x i64> %b, ptr %res
+ ret void
+}
+
+define void @broadcast_v4i64(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast_v4i64:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 170
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <4 x i64>, ptr %a
+ %b = shufflevector <4 x i64> poison, <4 x i64> %va, <4 x i32> <i32 6, i32 6, i32 6, i32 6>
+ store <4 x i64> %b, ptr %res
+ ret void
+}
+
+define void @broadcast0_v4f64(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast0_v4f64:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 0
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <4 x double>, ptr %a
+ %b = shufflevector <4 x double> poison, <4 x double> %va, <4 x i32> <i32 4, i32 4, i32 4, i32 4>
+ store <4 x double> %b, ptr %res
+ ret void
+}
+
+define void @broadcast_v4f64(ptr %res, ptr %a) nounwind {
+; CHECK-LABEL: broadcast_v4f64:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: xvld $xr0, $a1, 0
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 255
+; CHECK-NEXT: xvst $xr0, $a0, 0
+; CHECK-NEXT: ret
+entry:
+ %va = load <4 x double>, ptr %a
+ %b = shufflevector <4 x double> %va, <4 x double> poison, <4 x i32> <i32 3, i32 3, i32 3, i32 3>
+ store <4 x double> %b, ptr %res
+ ret void
+}
``````````
</details>
https://github.com/llvm/llvm-project/pull/169268
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