[clang] [clang][RISCV] Fix crash on VLS calling convention (PR #145489)
Brandon Wu via cfe-commits
cfe-commits at lists.llvm.org
Tue Jun 24 02:52:07 PDT 2025
https://github.com/4vtomat created https://github.com/llvm/llvm-project/pull/145489
This patch handle struct of fixed vector and struct of array of fixed
vector correctly for VLS calling convention in EmitFunctionProlog,
EmitFunctionEpilog and EmitCall.
>From 5d4fb54e6ee61c258d4fb1a5ecb00021addbd471 Mon Sep 17 00:00:00 2001
From: Brandon Wu <songwu0813 at gmail.com>
Date: Tue, 24 Jun 2025 02:46:21 -0700
Subject: [PATCH] [clang][RISCV] Fix crash on VLS calling convention
This patch handle struct of fixed vector and struct of array of fixed
vector correctly for VLS calling convention in EmitFunctionProlog,
EmitFunctionEpilog and EmitCall.
---
clang/lib/CodeGen/CGCall.cpp | 39 ++++++++----
.../RISCV/riscv-vector-callingconv-llvm-ir.c | 62 ++++++++++++++-----
.../riscv-vector-callingconv-llvm-ir.cpp | 32 +++++-----
3 files changed, 90 insertions(+), 43 deletions(-)
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index fd75de42515da..46182f9f418c2 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -1329,6 +1329,19 @@ static llvm::Value *CreateCoercedLoad(Address Src, llvm::Type *Ty,
llvm::TypeSize DstSize = CGF.CGM.getDataLayout().getTypeAllocSize(Ty);
if (llvm::StructType *SrcSTy = dyn_cast<llvm::StructType>(SrcTy)) {
+ if (Ty->isScalableTy() || Ty->isRISCVVectorTupleTy()) {
+ // In RISCV VLS calling convention, struct of fixed vector might be
+ // lowered using scalable vector, we consider it as a valid load, e.g.
+ // struct i32x4 {
+ // __attribute__((vector_size(16))) int i;
+ // };
+ // is lowered to
+ // <vscale x 2 x i32> when ABI_VLEN = 128 bits, please checkout
+ // clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.c
+ // for more information.
+ Src = Src.withElementType(Ty);
+ return CGF.Builder.CreateLoad(Src);
+ }
Src = EnterStructPointerForCoercedAccess(Src, SrcSTy,
DstSize.getFixedValue(), CGF);
SrcTy = Src.getElementType();
@@ -1412,6 +1425,21 @@ void CodeGenFunction::CreateCoercedStore(llvm::Value *Src, Address Dst,
if (SrcTy != Dst.getElementType()) {
if (llvm::StructType *DstSTy =
dyn_cast<llvm::StructType>(Dst.getElementType())) {
+ if (SrcTy->isScalableTy() || SrcTy->isRISCVVectorTupleTy()) {
+ // In RISCV VLS calling convention, struct of fixed vector might be
+ // lowered using scalable vector, we consider it as a valid load, e.g.
+ // struct i32x4 {
+ // __attribute__((vector_size(16))) int i;
+ // };
+ // is lowered to
+ // <vscale x 2 x i32> when ABI_VLEN = 128 bits, please checkout
+ // clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.c
+ // for more information.
+ Dst = Dst.withElementType(SrcTy);
+ auto *I = Builder.CreateStore(Src, Dst, DstIsVolatile);
+ addInstToCurrentSourceAtom(I, Src);
+ return;
+ }
assert(!SrcSize.isScalable());
Dst = EnterStructPointerForCoercedAccess(Dst, DstSTy,
SrcSize.getFixedValue(), *this);
@@ -3328,17 +3356,6 @@ void CodeGenFunction::EmitFunctionProlog(const CGFunctionInfo &FI,
}
}
- // Struct of fixed-length vectors and struct of array of fixed-length
- // vector in VLS calling convention are coerced to vector tuple
- // type(represented as TargetExtType) and scalable vector type
- // respectively, they're no longer handled as struct.
- if (ArgI.isDirect() && isa<llvm::StructType>(ConvertType(Ty)) &&
- (isa<llvm::TargetExtType>(ArgI.getCoerceToType()) ||
- isa<llvm::ScalableVectorType>(ArgI.getCoerceToType()))) {
- ArgVals.push_back(ParamValue::forDirect(AI));
- break;
- }
-
llvm::StructType *STy =
dyn_cast<llvm::StructType>(ArgI.getCoerceToType());
Address Alloca =
diff --git a/clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.c b/clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.c
index 3044d91f1c31c..5799c6bd811b0 100644
--- a/clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.c
+++ b/clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.c
@@ -143,34 +143,34 @@ void __attribute__((riscv_vls_cc)) test_too_large(int32x64_t arg) {}
// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_too_large_256(<vscale x 16 x i32> noundef %arg.coerce)
void __attribute__((riscv_vls_cc(256))) test_too_large_256(int32x64_t arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4(<vscale x 2 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4(<vscale x 2 x i32> %arg.coerce)
void __attribute__((riscv_vls_cc)) test_st_i32x4(struct st_i32x4 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4_256(<vscale x 1 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4_256(<vscale x 1 x i32> %arg.coerce)
void __attribute__((riscv_vls_cc(256))) test_st_i32x4_256(struct st_i32x4 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4_arr1(<vscale x 2 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4_arr1(<vscale x 2 x i32> %arg.coerce)
void __attribute__((riscv_vls_cc)) test_st_i32x4_arr1(struct st_i32x4_arr1 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4_arr1_256(<vscale x 1 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4_arr1_256(<vscale x 1 x i32> %arg.coerce)
void __attribute__((riscv_vls_cc(256))) test_st_i32x4_arr1_256(struct st_i32x4_arr1 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4_arr4(<vscale x 8 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4_arr4(<vscale x 8 x i32> %arg.coerce)
void __attribute__((riscv_vls_cc)) test_st_i32x4_arr4(struct st_i32x4_arr4 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4_arr4_256(<vscale x 4 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4_arr4_256(<vscale x 4 x i32> %arg.coerce)
void __attribute__((riscv_vls_cc(256))) test_st_i32x4_arr4_256(struct st_i32x4_arr4 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4_arr8(<vscale x 16 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4_arr8(<vscale x 16 x i32> %arg.coerce)
void __attribute__((riscv_vls_cc)) test_st_i32x4_arr8(struct st_i32x4_arr8 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4_arr8_256(<vscale x 8 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4_arr8_256(<vscale x 8 x i32> %arg.coerce)
void __attribute__((riscv_vls_cc(256))) test_st_i32x4_arr8_256(struct st_i32x4_arr8 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4x2(target("riscv.vector.tuple", <vscale x 8 x i8>, 2) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4x2(target("riscv.vector.tuple", <vscale x 8 x i8>, 2) %arg.coerce)
void __attribute__((riscv_vls_cc)) test_st_i32x4x2(struct st_i32x4x2 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4x2_256(target("riscv.vector.tuple", <vscale x 4 x i8>, 2) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4x2_256(target("riscv.vector.tuple", <vscale x 4 x i8>, 2) %arg.coerce)
void __attribute__((riscv_vls_cc(256))) test_st_i32x4x2_256(struct st_i32x4x2 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x8x2(target("riscv.vector.tuple", <vscale x 16 x i8>, 2) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x8x2(target("riscv.vector.tuple", <vscale x 16 x i8>, 2) %arg.coerce)
void __attribute__((riscv_vls_cc)) test_st_i32x8x2(struct st_i32x8x2 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x8x2_256(target("riscv.vector.tuple", <vscale x 8 x i8>, 2) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x8x2_256(target("riscv.vector.tuple", <vscale x 8 x i8>, 2) %arg.coerce)
void __attribute__((riscv_vls_cc(256))) test_st_i32x8x2_256(struct st_i32x8x2 arg) {}
// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x64x2(ptr noundef %arg)
@@ -178,17 +178,47 @@ void __attribute__((riscv_vls_cc)) test_st_i32x64x2(struct st_i32x64x2 arg) {}
// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x64x2_256(ptr noundef %arg)
void __attribute__((riscv_vls_cc(256))) test_st_i32x64x2_256(struct st_i32x64x2 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4x3(target("riscv.vector.tuple", <vscale x 8 x i8>, 3) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4x3(target("riscv.vector.tuple", <vscale x 8 x i8>, 3) %arg.coerce)
void __attribute__((riscv_vls_cc)) test_st_i32x4x3(struct st_i32x4x3 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4x3_256(target("riscv.vector.tuple", <vscale x 4 x i8>, 3) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4x3_256(target("riscv.vector.tuple", <vscale x 4 x i8>, 3) %arg.coerce)
void __attribute__((riscv_vls_cc(256))) test_st_i32x4x3_256(struct st_i32x4x3 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4x8(target("riscv.vector.tuple", <vscale x 8 x i8>, 8) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4x8(target("riscv.vector.tuple", <vscale x 8 x i8>, 8) %arg.coerce)
void __attribute__((riscv_vls_cc)) test_st_i32x4x8(struct st_i32x4x8 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4x8_256(target("riscv.vector.tuple", <vscale x 4 x i8>, 8) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4x8_256(target("riscv.vector.tuple", <vscale x 4 x i8>, 8) %arg.coerce)
void __attribute__((riscv_vls_cc(256))) test_st_i32x4x8_256(struct st_i32x4x8 arg) {}
// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @test_st_i32x4x9(ptr noundef %arg)
void __attribute__((riscv_vls_cc)) test_st_i32x4x9(struct st_i32x4x9 arg) {}
// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @test_st_i32x4x9_256(ptr noundef %arg)
void __attribute__((riscv_vls_cc(256))) test_st_i32x4x9_256(struct st_i32x4x9 arg) {}
+
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) <vscale x 8 x i32> @test_function_prolog_epilog(<vscale x 8 x i32> %arg.coerce) #0 {
+// CHECK-LLVM: entry:
+// CHECK-LLVM: %retval = alloca %struct.st_i32x4_arr4, align 16
+// CHECK-LLVM: %arg = alloca %struct.st_i32x4_arr4, align 16
+// CHECK-LLVM: store <vscale x 8 x i32> %arg.coerce, ptr %arg, align 16
+// CHECK-LLVM: call void @llvm.memcpy.p0.p0.i64(ptr align 16 %retval, ptr align 16 %arg, i64 64, i1 false)
+// CHECK-LLVM: %0 = load <vscale x 8 x i32>, ptr %retval, align 16
+// CHECK-LLVM: ret <vscale x 8 x i32> %0
+// CHECK-LLVM: }
+struct st_i32x4_arr4 __attribute__((riscv_vls_cc)) test_function_prolog_epilog(struct st_i32x4_arr4 arg) {
+ return arg;
+}
+
+struct st_i32x4 __attribute__((riscv_vls_cc)) dummy(struct st_i32x4);
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) <vscale x 2 x i32> @test_call(<vscale x 2 x i32> %arg.coerce) #0 {
+// CHECK-LLVM: entry:
+// CHECK-LLVM: %retval = alloca %struct.st_i32x4, align 16
+// CHECK-LLVM: %arg = alloca %struct.st_i32x4, align 16
+// CHECK-LLVM: store <vscale x 2 x i32> %arg.coerce, ptr %arg, align 16
+// CHECK-LLVM: %0 = load <vscale x 2 x i32>, ptr %arg, align 16
+// CHECK-LLVM: %call = call riscv_vls_cc(128) <vscale x 2 x i32> @dummy(<vscale x 2 x i32> %0)
+// CHECK-LLVM: store <vscale x 2 x i32> %call, ptr %retval, align 16
+// CHECK-LLVM: %1 = load <vscale x 2 x i32>, ptr %retval, align 16
+// CHECK-LLVM: ret <vscale x 2 x i32> %1
+// CHECK-LLVM: }
+struct st_i32x4 __attribute__((riscv_vls_cc)) test_call(struct st_i32x4 arg) {
+ struct st_i32x4 abc = dummy(arg);
+ return abc;
+}
diff --git a/clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.cpp b/clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.cpp
index 594bfe159b28c..4d374a3b888a7 100644
--- a/clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.cpp
+++ b/clang/test/CodeGen/RISCV/riscv-vector-callingconv-llvm-ir.cpp
@@ -123,34 +123,34 @@ typedef int __attribute__((vector_size(256))) int32x64_t;
// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z18test_too_large_256Dv64_i(<vscale x 16 x i32> noundef %arg.coerce)
[[riscv::vls_cc(256)]] void test_too_large_256(int32x64_t arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z13test_st_i32x48st_i32x4(<vscale x 2 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z13test_st_i32x48st_i32x4(<vscale x 2 x i32> %arg.coerce)
[[riscv::vls_cc]] void test_st_i32x4(struct st_i32x4 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z17test_st_i32x4_2568st_i32x4(<vscale x 1 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z17test_st_i32x4_2568st_i32x4(<vscale x 1 x i32> %arg.coerce)
[[riscv::vls_cc(256)]] void test_st_i32x4_256(struct st_i32x4 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z18test_st_i32x4_arr113st_i32x4_arr1(<vscale x 2 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z18test_st_i32x4_arr113st_i32x4_arr1(<vscale x 2 x i32> %arg.coerce)
[[riscv::vls_cc]] void test_st_i32x4_arr1(struct st_i32x4_arr1 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z22test_st_i32x4_arr1_25613st_i32x4_arr1(<vscale x 1 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z22test_st_i32x4_arr1_25613st_i32x4_arr1(<vscale x 1 x i32> %arg.coerce)
[[riscv::vls_cc(256)]] void test_st_i32x4_arr1_256(struct st_i32x4_arr1 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z18test_st_i32x4_arr413st_i32x4_arr4(<vscale x 8 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z18test_st_i32x4_arr413st_i32x4_arr4(<vscale x 8 x i32> %arg.coerce)
[[riscv::vls_cc]] void test_st_i32x4_arr4(struct st_i32x4_arr4 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z22test_st_i32x4_arr4_25613st_i32x4_arr4(<vscale x 4 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z22test_st_i32x4_arr4_25613st_i32x4_arr4(<vscale x 4 x i32> %arg.coerce)
[[riscv::vls_cc(256)]] void test_st_i32x4_arr4_256(struct st_i32x4_arr4 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z18test_st_i32x4_arr813st_i32x4_arr8(<vscale x 16 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z18test_st_i32x4_arr813st_i32x4_arr8(<vscale x 16 x i32> %arg.coerce)
[[riscv::vls_cc]] void test_st_i32x4_arr8(struct st_i32x4_arr8 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z22test_st_i32x4_arr8_25613st_i32x4_arr8(<vscale x 8 x i32> %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z22test_st_i32x4_arr8_25613st_i32x4_arr8(<vscale x 8 x i32> %arg.coerce)
[[riscv::vls_cc(256)]] void test_st_i32x4_arr8_256(struct st_i32x4_arr8 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z15test_st_i32x4x210st_i32x4x2(target("riscv.vector.tuple", <vscale x 8 x i8>, 2) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z15test_st_i32x4x210st_i32x4x2(target("riscv.vector.tuple", <vscale x 8 x i8>, 2) %arg.coerce)
[[riscv::vls_cc]] void test_st_i32x4x2(struct st_i32x4x2 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z19test_st_i32x4x2_25610st_i32x4x2(target("riscv.vector.tuple", <vscale x 4 x i8>, 2) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z19test_st_i32x4x2_25610st_i32x4x2(target("riscv.vector.tuple", <vscale x 4 x i8>, 2) %arg.coerce)
[[riscv::vls_cc(256)]] void test_st_i32x4x2_256(struct st_i32x4x2 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z15test_st_i32x8x210st_i32x8x2(target("riscv.vector.tuple", <vscale x 16 x i8>, 2) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z15test_st_i32x8x210st_i32x8x2(target("riscv.vector.tuple", <vscale x 16 x i8>, 2) %arg.coerce)
[[riscv::vls_cc]] void test_st_i32x8x2(struct st_i32x8x2 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z19test_st_i32x8x2_25610st_i32x8x2(target("riscv.vector.tuple", <vscale x 8 x i8>, 2) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z19test_st_i32x8x2_25610st_i32x8x2(target("riscv.vector.tuple", <vscale x 8 x i8>, 2) %arg.coerce)
[[riscv::vls_cc(256)]] void test_st_i32x8x2_256(struct st_i32x8x2 arg) {}
// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z16test_st_i32x64x211st_i32x64x2(ptr noundef %arg)
@@ -158,14 +158,14 @@ typedef int __attribute__((vector_size(256))) int32x64_t;
// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z20test_st_i32x64x2_25611st_i32x64x2(ptr noundef %arg)
[[riscv::vls_cc(256)]] void test_st_i32x64x2_256(struct st_i32x64x2 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z15test_st_i32x4x310st_i32x4x3(target("riscv.vector.tuple", <vscale x 8 x i8>, 3) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z15test_st_i32x4x310st_i32x4x3(target("riscv.vector.tuple", <vscale x 8 x i8>, 3) %arg.coerce)
[[riscv::vls_cc]] void test_st_i32x4x3(struct st_i32x4x3 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z19test_st_i32x4x3_25610st_i32x4x3(target("riscv.vector.tuple", <vscale x 4 x i8>, 3) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z19test_st_i32x4x3_25610st_i32x4x3(target("riscv.vector.tuple", <vscale x 4 x i8>, 3) %arg.coerce)
[[riscv::vls_cc(256)]] void test_st_i32x4x3_256(struct st_i32x4x3 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z15test_st_i32x4x810st_i32x4x8(target("riscv.vector.tuple", <vscale x 8 x i8>, 8) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z15test_st_i32x4x810st_i32x4x8(target("riscv.vector.tuple", <vscale x 8 x i8>, 8) %arg.coerce)
[[riscv::vls_cc]] void test_st_i32x4x8(struct st_i32x4x8 arg) {}
-// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z19test_st_i32x4x8_25610st_i32x4x8(target("riscv.vector.tuple", <vscale x 4 x i8>, 8) %arg)
+// CHECK-LLVM: define dso_local riscv_vls_cc(256) void @_Z19test_st_i32x4x8_25610st_i32x4x8(target("riscv.vector.tuple", <vscale x 4 x i8>, 8) %arg.coerce)
[[riscv::vls_cc(256)]] void test_st_i32x4x8_256(struct st_i32x4x8 arg) {}
// CHECK-LLVM: define dso_local riscv_vls_cc(128) void @_Z15test_st_i32x4x910st_i32x4x9(ptr noundef %arg)
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