[clang] [llvm] [RISCV][P-ext] Support Packed Element Insert (PR #222268)

via cfe-commits cfe-commits at lists.llvm.org
Wed Sep 9 01:42:47 PDT 2026


llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-x86

Author: TelGome

<details>
<summary>Changes</summary>

This pr support [Packed Element Insert](https://github.com/riscv/riscv-p-spec/blob/master/P-ext-intrinsics.adoc#packed-element-insert)

---
Full diff: https://github.com/llvm/llvm-project/pull/222268.diff


4 Files Affected:

- (modified) clang/lib/Headers/riscv_packed_simd.h (+26) 
- (modified) clang/test/CodeGen/RISCV/rvp-intrinsics.c (+204) 
- (added) clang/test/Sema/riscv-pset-index-out-of-range.c (+33) 
- (modified) cross-project-tests/intrinsic-header-tests/riscv_packed_simd.c (+66) 


``````````diff
diff --git a/clang/lib/Headers/riscv_packed_simd.h b/clang/lib/Headers/riscv_packed_simd.h
index 37ac140780d02..3a5b33f8c5a77 100644
--- a/clang/lib/Headers/riscv_packed_simd.h
+++ b/clang/lib/Headers/riscv_packed_simd.h
@@ -312,6 +312,17 @@ typedef uint32_t uint32x2_t __attribute__((__vector_size__(8)));
     return __builtin_bit_cast(rty, __x);                                       \
   }
 
+#define __packed_insert(name, ty, elt_ty, max_idx)                             \
+  static __inline__ ty __DEFAULT_FN_ATTRS __riscv_##name(ty __v, elt_ty __e,   \
+                                                         unsigned __idx)       \
+      __attribute__((__enable_if__(                                            \
+          __idx <= (max_idx),                                                  \
+          "index must be a constant integer from 0 to " #max_idx))) {          \
+    ty __r = __v;                                                              \
+    __r[__idx] = __e;                                                          \
+    return __r;                                                                \
+  }
+
 // clang-format off: macro call sites have no trailing semicolons, which
 // confuses clang-format into a deeply nested expression.
 
@@ -565,6 +576,20 @@ __packed_binary_builtin_mixed(psshl_s_u32x2, uint32x2_t, uint32x2_t, int, __buil
 __packed_binary_builtin_mixed(psshlr_s_u16x4, uint16x4_t, uint16x4_t, int, __builtin_riscv_psshlr_s_u16x4)
 __packed_binary_builtin_mixed(psshlr_s_u32x2, uint32x2_t, uint32x2_t, int, __builtin_riscv_psshlr_s_u32x2)
 
+/* Packed Element Insert (32-bit) */
+__packed_insert(pset_i8_i8x4, int8x4_t, int8_t, 3)
+__packed_insert(pset_u8_u8x4, uint8x4_t, uint8_t, 3)
+__packed_insert(pset_i16_i16x2, int16x2_t, int16_t, 1)
+__packed_insert(pset_u16_u16x2, uint16x2_t, uint16_t, 1)
+
+/* Packed Element Insert (64-bit) */
+__packed_insert(pset_i8_i8x8, int8x8_t, int8_t, 7)
+__packed_insert(pset_u8_u8x8, uint8x8_t, uint8_t, 7)
+__packed_insert(pset_i16_i16x4, int16x4_t, int16_t, 3)
+__packed_insert(pset_u16_u16x4, uint16x4_t, uint16_t, 3)
+__packed_insert(pset_i32_i32x2, int32x2_t, int32_t, 1)
+__packed_insert(pset_u32_u32x2, uint32x2_t, uint32_t, 1)
+
 /* Packed Logical Operations (32-bit) */
 __packed_binary_op(pand_i8x4, int8x4_t, &)
 __packed_binary_op(pand_u8x4, uint8x4_t, &)
@@ -1161,6 +1186,7 @@ __packed_reinterpret(u32x2_i32x2, int32x2_t, uint32x2_t)
 #undef __packed_abdsum
 #undef __packed_ternary_builtin_cast
 #undef __packed_extract
+#undef __packed_insert
 #undef __packed_reinterpret
 #undef __DEFAULT_FN_ATTRS
 
diff --git a/clang/test/CodeGen/RISCV/rvp-intrinsics.c b/clang/test/CodeGen/RISCV/rvp-intrinsics.c
index 7589157c38754..5a224a3079e79 100644
--- a/clang/test/CodeGen/RISCV/rvp-intrinsics.c
+++ b/clang/test/CodeGen/RISCV/rvp-intrinsics.c
@@ -10883,3 +10883,207 @@ int32_t test_pget_i32x2_i32(int32x2_t v) {
 uint32_t test_pget_u32x2_u32(uint32x2_t v) {
   return __riscv_pget_u32x2_u32(v, 1);
 }
+
+/* Packed Element Insert (32-bit) */
+
+// RV32-LABEL: define dso_local i32 @test_pset_i8_i8x4(
+// RV32-SAME: i32 noundef [[V_COERCE:%.*]], i8 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = bitcast i32 [[V_COERCE]] to <4 x i8>
+// RV32-NEXT:    [[VECINS_I:%.*]] = insertelement <4 x i8> [[TMP0]], i8 [[E]], i64 2
+// RV32-NEXT:    [[TMP1:%.*]] = bitcast <4 x i8> [[VECINS_I]] to i32
+// RV32-NEXT:    ret i32 [[TMP1]]
+//
+// RV64-LABEL: define dso_local i32 @test_pset_i8_i8x4(
+// RV64-SAME: i32 noundef [[V_COERCE:%.*]], i8 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = bitcast i32 [[V_COERCE]] to <4 x i8>
+// RV64-NEXT:    [[VECINS_I:%.*]] = insertelement <4 x i8> [[TMP0]], i8 [[E]], i64 2
+// RV64-NEXT:    [[TMP1:%.*]] = bitcast <4 x i8> [[VECINS_I]] to i32
+// RV64-NEXT:    ret i32 [[TMP1]]
+//
+int8x4_t test_pset_i8_i8x4(int8x4_t v, int8_t e) {
+  return __riscv_pset_i8_i8x4(v, e, 2);
+}
+
+// RV32-LABEL: define dso_local i32 @test_pset_u8_u8x4(
+// RV32-SAME: i32 noundef [[V_COERCE:%.*]], i8 noundef zeroext [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = bitcast i32 [[V_COERCE]] to <4 x i8>
+// RV32-NEXT:    [[VECINS_I:%.*]] = insertelement <4 x i8> [[TMP0]], i8 [[E]], i64 3
+// RV32-NEXT:    [[TMP1:%.*]] = bitcast <4 x i8> [[VECINS_I]] to i32
+// RV32-NEXT:    ret i32 [[TMP1]]
+//
+// RV64-LABEL: define dso_local i32 @test_pset_u8_u8x4(
+// RV64-SAME: i32 noundef [[V_COERCE:%.*]], i8 noundef zeroext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = bitcast i32 [[V_COERCE]] to <4 x i8>
+// RV64-NEXT:    [[VECINS_I:%.*]] = insertelement <4 x i8> [[TMP0]], i8 [[E]], i64 3
+// RV64-NEXT:    [[TMP1:%.*]] = bitcast <4 x i8> [[VECINS_I]] to i32
+// RV64-NEXT:    ret i32 [[TMP1]]
+//
+uint8x4_t test_pset_u8_u8x4(uint8x4_t v, uint8_t e) {
+  return __riscv_pset_u8_u8x4(v, e, 3);
+}
+
+// RV32-LABEL: define dso_local i32 @test_pset_i16_i16x2(
+// RV32-SAME: i32 noundef [[V_COERCE:%.*]], i16 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = bitcast i32 [[V_COERCE]] to <2 x i16>
+// RV32-NEXT:    [[VECINS_I:%.*]] = insertelement <2 x i16> [[TMP0]], i16 [[E]], i64 1
+// RV32-NEXT:    [[TMP1:%.*]] = bitcast <2 x i16> [[VECINS_I]] to i32
+// RV32-NEXT:    ret i32 [[TMP1]]
+//
+// RV64-LABEL: define dso_local i32 @test_pset_i16_i16x2(
+// RV64-SAME: i32 noundef [[V_COERCE:%.*]], i16 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = bitcast i32 [[V_COERCE]] to <2 x i16>
+// RV64-NEXT:    [[VECINS_I:%.*]] = insertelement <2 x i16> [[TMP0]], i16 [[E]], i64 1
+// RV64-NEXT:    [[TMP1:%.*]] = bitcast <2 x i16> [[VECINS_I]] to i32
+// RV64-NEXT:    ret i32 [[TMP1]]
+//
+int16x2_t test_pset_i16_i16x2(int16x2_t v, int16_t e) {
+  return __riscv_pset_i16_i16x2(v, e, 1);
+}
+
+// RV32-LABEL: define dso_local i32 @test_pset_u16_u16x2(
+// RV32-SAME: i32 noundef [[V_COERCE:%.*]], i16 noundef zeroext [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = and i32 [[V_COERCE]], -65536
+// RV32-NEXT:    [[TMP1:%.*]] = zext i16 [[E]] to i32
+// RV32-NEXT:    [[TMP2:%.*]] = or disjoint i32 [[TMP0]], [[TMP1]]
+// RV32-NEXT:    ret i32 [[TMP2]]
+//
+// RV64-LABEL: define dso_local i32 @test_pset_u16_u16x2(
+// RV64-SAME: i32 noundef [[V_COERCE:%.*]], i16 noundef zeroext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = and i32 [[V_COERCE]], -65536
+// RV64-NEXT:    [[TMP1:%.*]] = zext i16 [[E]] to i32
+// RV64-NEXT:    [[TMP2:%.*]] = or disjoint i32 [[TMP0]], [[TMP1]]
+// RV64-NEXT:    ret i32 [[TMP2]]
+//
+uint16x2_t test_pset_u16_u16x2(uint16x2_t v, uint16_t e) {
+  return __riscv_pset_u16_u16x2(v, e, 0);
+}
+
+/* Packed Element Insert (64-bit) */
+
+// RV32-LABEL: define dso_local i64 @test_pset_i8_i8x8(
+// RV32-SAME: i64 noundef [[V_COERCE:%.*]], i8 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <8 x i8>
+// RV32-NEXT:    [[VECINS_I:%.*]] = insertelement <8 x i8> [[TMP0]], i8 [[E]], i64 5
+// RV32-NEXT:    [[TMP1:%.*]] = bitcast <8 x i8> [[VECINS_I]] to i64
+// RV32-NEXT:    ret i64 [[TMP1]]
+//
+// RV64-LABEL: define dso_local i64 @test_pset_i8_i8x8(
+// RV64-SAME: i64 noundef [[V_COERCE:%.*]], i8 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <8 x i8>
+// RV64-NEXT:    [[VECINS_I:%.*]] = insertelement <8 x i8> [[TMP0]], i8 [[E]], i64 5
+// RV64-NEXT:    [[TMP1:%.*]] = bitcast <8 x i8> [[VECINS_I]] to i64
+// RV64-NEXT:    ret i64 [[TMP1]]
+//
+int8x8_t test_pset_i8_i8x8(int8x8_t v, int8_t e) {
+  return __riscv_pset_i8_i8x8(v, e, 5);
+}
+
+// RV32-LABEL: define dso_local i64 @test_pset_u8_u8x8(
+// RV32-SAME: i64 noundef [[V_COERCE:%.*]], i8 noundef zeroext [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <8 x i8>
+// RV32-NEXT:    [[VECINS_I:%.*]] = insertelement <8 x i8> [[TMP0]], i8 [[E]], i64 7
+// RV32-NEXT:    [[TMP1:%.*]] = bitcast <8 x i8> [[VECINS_I]] to i64
+// RV32-NEXT:    ret i64 [[TMP1]]
+//
+// RV64-LABEL: define dso_local i64 @test_pset_u8_u8x8(
+// RV64-SAME: i64 noundef [[V_COERCE:%.*]], i8 noundef zeroext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <8 x i8>
+// RV64-NEXT:    [[VECINS_I:%.*]] = insertelement <8 x i8> [[TMP0]], i8 [[E]], i64 7
+// RV64-NEXT:    [[TMP1:%.*]] = bitcast <8 x i8> [[VECINS_I]] to i64
+// RV64-NEXT:    ret i64 [[TMP1]]
+//
+uint8x8_t test_pset_u8_u8x8(uint8x8_t v, uint8_t e) {
+  return __riscv_pset_u8_u8x8(v, e, 7);
+}
+
+// RV32-LABEL: define dso_local i64 @test_pset_i16_i16x4(
+// RV32-SAME: i64 noundef [[V_COERCE:%.*]], i16 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <4 x i16>
+// RV32-NEXT:    [[VECINS_I:%.*]] = insertelement <4 x i16> [[TMP0]], i16 [[E]], i64 3
+// RV32-NEXT:    [[TMP1:%.*]] = bitcast <4 x i16> [[VECINS_I]] to i64
+// RV32-NEXT:    ret i64 [[TMP1]]
+//
+// RV64-LABEL: define dso_local i64 @test_pset_i16_i16x4(
+// RV64-SAME: i64 noundef [[V_COERCE:%.*]], i16 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <4 x i16>
+// RV64-NEXT:    [[VECINS_I:%.*]] = insertelement <4 x i16> [[TMP0]], i16 [[E]], i64 3
+// RV64-NEXT:    [[TMP1:%.*]] = bitcast <4 x i16> [[VECINS_I]] to i64
+// RV64-NEXT:    ret i64 [[TMP1]]
+//
+int16x4_t test_pset_i16_i16x4(int16x4_t v, int16_t e) {
+  return __riscv_pset_i16_i16x4(v, e, 3);
+}
+
+// RV32-LABEL: define dso_local i64 @test_pset_u16_u16x4(
+// RV32-SAME: i64 noundef [[V_COERCE:%.*]], i16 noundef zeroext [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <4 x i16>
+// RV32-NEXT:    [[VECINS_I:%.*]] = insertelement <4 x i16> [[TMP0]], i16 [[E]], i64 2
+// RV32-NEXT:    [[TMP1:%.*]] = bitcast <4 x i16> [[VECINS_I]] to i64
+// RV32-NEXT:    ret i64 [[TMP1]]
+//
+// RV64-LABEL: define dso_local i64 @test_pset_u16_u16x4(
+// RV64-SAME: i64 noundef [[V_COERCE:%.*]], i16 noundef zeroext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <4 x i16>
+// RV64-NEXT:    [[VECINS_I:%.*]] = insertelement <4 x i16> [[TMP0]], i16 [[E]], i64 2
+// RV64-NEXT:    [[TMP1:%.*]] = bitcast <4 x i16> [[VECINS_I]] to i64
+// RV64-NEXT:    ret i64 [[TMP1]]
+//
+uint16x4_t test_pset_u16_u16x4(uint16x4_t v, uint16_t e) {
+  return __riscv_pset_u16_u16x4(v, e, 2);
+}
+
+// RV32-LABEL: define dso_local i64 @test_pset_i32_i32x2(
+// RV32-SAME: i64 noundef [[V_COERCE:%.*]], i32 noundef [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <2 x i32>
+// RV32-NEXT:    [[VECINS_I:%.*]] = insertelement <2 x i32> [[TMP0]], i32 [[E]], i64 1
+// RV32-NEXT:    [[TMP1:%.*]] = bitcast <2 x i32> [[VECINS_I]] to i64
+// RV32-NEXT:    ret i64 [[TMP1]]
+//
+// RV64-LABEL: define dso_local i64 @test_pset_i32_i32x2(
+// RV64-SAME: i64 noundef [[V_COERCE:%.*]], i32 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <2 x i32>
+// RV64-NEXT:    [[VECINS_I:%.*]] = insertelement <2 x i32> [[TMP0]], i32 [[E]], i64 1
+// RV64-NEXT:    [[TMP1:%.*]] = bitcast <2 x i32> [[VECINS_I]] to i64
+// RV64-NEXT:    ret i64 [[TMP1]]
+//
+int32x2_t test_pset_i32_i32x2(int32x2_t v, int32_t e) {
+  return __riscv_pset_i32_i32x2(v, e, 1);
+}
+
+// RV32-LABEL: define dso_local i64 @test_pset_u32_u32x2(
+// RV32-SAME: i64 noundef [[V_COERCE:%.*]], i32 noundef [[E:%.*]]) #[[ATTR0]] {
+// RV32-NEXT:  [[ENTRY:.*:]]
+// RV32-NEXT:    [[TMP0:%.*]] = bitcast i64 [[V_COERCE]] to <2 x i32>
+// RV32-NEXT:    [[VECINS_I:%.*]] = insertelement <2 x i32> [[TMP0]], i32 [[E]], i64 0
+// RV32-NEXT:    [[TMP1:%.*]] = bitcast <2 x i32> [[VECINS_I]] to i64
+// RV32-NEXT:    ret i64 [[TMP1]]
+//
+// RV64-LABEL: define dso_local i64 @test_pset_u32_u32x2(
+// RV64-SAME: i64 noundef [[V_COERCE:%.*]], i32 noundef signext [[E:%.*]]) #[[ATTR0]] {
+// RV64-NEXT:  [[ENTRY:.*:]]
+// RV64-NEXT:    [[TMP0:%.*]] = and i64 [[V_COERCE]], -4294967296
+// RV64-NEXT:    [[TMP1:%.*]] = zext i32 [[E]] to i64
+// RV64-NEXT:    [[TMP2:%.*]] = or disjoint i64 [[TMP0]], [[TMP1]]
+// RV64-NEXT:    ret i64 [[TMP2]]
+//
+uint32x2_t test_pset_u32_u32x2(uint32x2_t v, uint32_t e) {
+  return __riscv_pset_u32_u32x2(v, e, 0);
+}
diff --git a/clang/test/Sema/riscv-pset-index-out-of-range.c b/clang/test/Sema/riscv-pset-index-out-of-range.c
new file mode 100644
index 0000000000000..72bac2973c6f8
--- /dev/null
+++ b/clang/test/Sema/riscv-pset-index-out-of-range.c
@@ -0,0 +1,33 @@
+// RUN: %clang_cc1 -triple riscv32 -target-feature +experimental-p \
+// RUN:   -fsyntax-only -verify -verify-ignore-unexpected=note %s
+// RUN: %clang_cc1 -triple riscv64 -target-feature +experimental-p \
+// RUN:   -fsyntax-only -verify -verify-ignore-unexpected=note %s
+
+#include <riscv_packed_simd.h>
+
+// expected-note@*:* {{candidate disabled: index must be a constant integer from 0 to 3}}
+// expected-note@*:* {{candidate disabled: index must be a constant integer from 0 to 1}}
+// expected-note@*:* {{candidate disabled: index must be a constant integer from 0 to 7}}
+int16x2_t test_pset_nonconstant(int16x2_t v, int16_t e, unsigned idx) {
+  // expected-error at +1 {{no matching function for call to '__riscv_pset_i16_i16x2'}}
+  return __riscv_pset_i16_i16x2(v, e, idx);
+}
+
+int16x2_t test_pset_i16_i16x2_ok(int16x2_t v, int16_t e) {
+  return __riscv_pset_i16_i16x2(v, e, 1);
+}
+
+int16x2_t test_pset_i16_i16x2_out_of_range(int16x2_t v, int16_t e) {
+  // expected-error at +1 {{no matching function for call to '__riscv_pset_i16_i16x2'}}
+  return __riscv_pset_i16_i16x2(v, e, 2);
+}
+
+uint8x4_t test_pset_u8_u8x4_out_of_range(uint8x4_t v, uint8_t e) {
+  // expected-error at +1 {{no matching function for call to '__riscv_pset_u8_u8x4'}}
+  return __riscv_pset_u8_u8x4(v, e, 4);
+}
+
+uint8x8_t test_pset_u8_u8x8_out_of_range(uint8x8_t v, uint8_t e) {
+  // expected-error at +1 {{no matching function for call to '__riscv_pset_u8_u8x8'}}
+  return __riscv_pset_u8_u8x8(v, e, 8);
+}
diff --git a/cross-project-tests/intrinsic-header-tests/riscv_packed_simd.c b/cross-project-tests/intrinsic-header-tests/riscv_packed_simd.c
index 48fcf036794ff..bfba1891432af 100644
--- a/cross-project-tests/intrinsic-header-tests/riscv_packed_simd.c
+++ b/cross-project-tests/intrinsic-header-tests/riscv_packed_simd.c
@@ -4248,3 +4248,69 @@ int32_t test_pget_i32x2_i32(int32x2_t v) {
 uint32_t test_pget_u32x2_u32(uint32x2_t v) {
   return __riscv_pget_u32x2_u32(v, 1);
 }
+
+// CHECK-LABEL: test_pset_i8_i8x4:
+// CHECK:        mvm
+int8x4_t test_pset_i8_i8x4(int8x4_t v, int8_t e) {
+  return __riscv_pset_i8_i8x4(v, e, 2);
+}
+
+// CHECK-LABEL: test_pset_u8_u8x4:
+// CHECK:        mvm
+uint8x4_t test_pset_u8_u8x4(uint8x4_t v, uint8_t e) {
+  return __riscv_pset_u8_u8x4(v, e, 3);
+}
+
+// CHECK-LABEL: test_pset_i16_i16x2:
+// RV32:         pack
+// RV64:         mvm
+int16x2_t test_pset_i16_i16x2(int16x2_t v, int16_t e) {
+  return __riscv_pset_i16_i16x2(v, e, 1);
+}
+
+// CHECK-LABEL: test_pset_u16_u16x2:
+// CHECK:        and
+// CHECK:        or
+uint16x2_t test_pset_u16_u16x2(uint16x2_t v, uint16_t e) {
+  return __riscv_pset_u16_u16x2(v, e, 0);
+}
+
+// CHECK-LABEL: test_pset_i8_i8x8:
+// CHECK:        mvm
+int8x8_t test_pset_i8_i8x8(int8x8_t v, int8_t e) {
+  return __riscv_pset_i8_i8x8(v, e, 5);
+}
+
+// CHECK-LABEL: test_pset_u8_u8x8:
+// CHECK:        mvm
+uint8x8_t test_pset_u8_u8x8(uint8x8_t v, uint8_t e) {
+  return __riscv_pset_u8_u8x8(v, e, 7);
+}
+
+// CHECK-LABEL: test_pset_i16_i16x4:
+// RV32:         pack
+// RV64:         mvm
+int16x4_t test_pset_i16_i16x4(int16x4_t v, int16_t e) {
+  return __riscv_pset_i16_i16x4(v, e, 3);
+}
+
+// CHECK-LABEL: test_pset_u16_u16x4:
+// RV32:         pack
+// RV64:         mvm
+uint16x4_t test_pset_u16_u16x4(uint16x4_t v, uint16_t e) {
+  return __riscv_pset_u16_u16x4(v, e, 2);
+}
+
+// CHECK-LABEL: test_pset_i32_i32x2:
+// RV32:         mv{{[[:space:]]}}
+// RV64:         pack
+int32x2_t test_pset_i32_i32x2(int32x2_t v, int32_t e) {
+  return __riscv_pset_i32_i32x2(v, e, 1);
+}
+
+// CHECK-LABEL: test_pset_u32_u32x2:
+// RV32:         mv{{[[:space:]]}}
+// RV64:         add.uw
+uint32x2_t test_pset_u32_u32x2(uint32x2_t v, uint32_t e) {
+  return __riscv_pset_u32_u32x2(v, e, 0);
+}

``````````

</details>


https://github.com/llvm/llvm-project/pull/222268


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