[gcc r17-2800] RISC-V: Add test cases for vwsubu.wv reg overlap

Pan Li via Gcc-cvs <[email protected]> Thu, 30 Jul 2026 00:56:09 +0000 (GMT)
Newsgroups gmane.comp.gcc.cvs
Message-ID <[email protected]>
https://gcc.gnu.org/g:865eff56437c52d9f94a20074a354185621847bd

commit r17-2800-g865eff56437c52d9f94a20074a354185621847bd
Author: Pan Li <[email protected]>
Date:   Mon Jul 27 15:49:10 2026 +0800

    RISC-V: Add test cases for vwsubu.wv reg overlap
    
    Add test cases for register group overlap, please
    note it is not overlap as much as possible.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m1.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m2.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m4.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-mf2.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-mf4.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m1.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m2.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m4.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-mf2.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m1.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m2.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m4.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf2.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf4.c: New test.
            * gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf8.c: New test.
    
    Signed-off-by: Pan Li <[email protected]>

Diff:
---
 .../rvv/autovec/group_overlap/vwsubu_wv-u16-m1.c   | 18 ++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u16-m2.c   | 18 ++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u16-m4.c   | 18 ++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u16-mf2.c  | 32 ++++++++++++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u16-mf4.c  | 32 ++++++++++++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u32-m1.c   | 18 ++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u32-m2.c   | 18 ++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u32-m4.c   | 18 ++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u32-mf2.c  | 32 ++++++++++++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u8-m1.c    | 18 ++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u8-m2.c    | 18 ++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u8-m4.c    | 18 ++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u8-mf2.c   | 32 ++++++++++++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u8-mf4.c   | 32 ++++++++++++++++++++++
 .../rvv/autovec/group_overlap/vwsubu_wv-u8-mf8.c   | 32 ++++++++++++++++++++++
 15 files changed, 354 insertions(+)

diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m1.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m1.c
new file mode 100644
index 000000000000..9a41d417fd3b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m1.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e16m1,
+  vuint16m1_t,
+  vuint32m2_t,
+  __riscv_vle16_v_u16m1,
+  __riscv_vle32_v_u32m2,
+  __riscv_vwsubu_wv_u32m2,
+  __riscv_vse32_v_u32m2,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v0,v4,v1([^0-9]|$)} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v2,v2,v25} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m2.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m2.c
new file mode 100644
index 000000000000..9c1e399aa768
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m2.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e16m2,
+  vuint16m2_t,
+  vuint32m4_t,
+  __riscv_vle16_v_u16m2,
+  __riscv_vle32_v_u32m4,
+  __riscv_vwsubu_wv_u32m4,
+  __riscv_vse32_v_u32m4,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X8)
+
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v0,v8,v2} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v16,v16,v0} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m4.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m4.c
new file mode 100644
index 000000000000..7ba8c3aa797e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-m4.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e16m4,
+  vuint16m4_t,
+  vuint32m8_t,
+  __riscv_vle16_v_u16m4,
+  __riscv_vle32_v_u32m8,
+  __riscv_vwsubu_wv_u32m8,
+  __riscv_vse32_v_u32m8,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X4)
+
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v0,v0,v12} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v8,v8,v28} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-mf2.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-mf2.c
new file mode 100644
index 000000000000..f842cd281853
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-mf2.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e16m1,
+  vuint16mf2_t,
+  vuint32m1_t,
+  __riscv_vle16_v_u16mf2,
+  __riscv_vle32_v_u32m1,
+  __riscv_vwsubu_wv_u32m1,
+  __riscv_vse32_v_u32m1,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v0,v[0-9]+,v1([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v2,v[0-9]+,v3([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v4,v[0-9]+,v5([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v6,v[0-9]+,v7([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v8,v[0-9]+,v9([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v10,v[0-9]+,v11([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v12,v[0-9]+,v13([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v14,v[0-9]+,v15([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v16,v[0-9]+,v17([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v18,v[0-9]+,v19([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v20,v[0-9]+,v21([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v22,v[0-9]+,v23([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v24,v[0-9]+,v25([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v26,v[0-9]+,v27([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v28,v[0-9]+,v29([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v30,v[0-9]+,v31([^0-9]|$)} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-mf4.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-mf4.c
new file mode 100644
index 000000000000..16986dfdc5cd
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u16-mf4.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e16m1,
+  vuint16mf4_t,
+  vuint32mf2_t,
+  __riscv_vle16_v_u16mf4,
+  __riscv_vle32_v_u32mf2,
+  __riscv_vwsubu_wv_u32mf2,
+  __riscv_vse32_v_u32mf2,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v0,v[0-9]+,v1([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v2,v[0-9]+,v3([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v4,v[0-9]+,v5([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v6,v[0-9]+,v7([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v8,v[0-9]+,v9([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v10,v[0-9]+,v11([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v12,v[0-9]+,v13([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v14,v[0-9]+,v15([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v16,v[0-9]+,v17([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v18,v[0-9]+,v19([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v20,v[0-9]+,v21([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v22,v[0-9]+,v23([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v24,v[0-9]+,v25([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v26,v[0-9]+,v27([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v28,v[0-9]+,v29([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v30,v[0-9]+,v31([^0-9]|$)} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m1.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m1.c
new file mode 100644
index 000000000000..d8a0fd428566
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m1.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e32m1,
+  vuint32m1_t,
+  vuint64m2_t,
+  __riscv_vle32_v_u32m1,
+  __riscv_vle64_v_u64m2,
+  __riscv_vwsubu_wv_u64m2,
+  __riscv_vse64_v_u64m2,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v0,v4,v1([^0-9]|$)} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v2,v2,v25} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m2.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m2.c
new file mode 100644
index 000000000000..06a5f520cd15
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m2.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e32m2,
+  vuint32m2_t,
+  vuint64m4_t,
+  __riscv_vle32_v_u32m2,
+  __riscv_vle64_v_u64m4,
+  __riscv_vwsubu_wv_u64m4,
+  __riscv_vse64_v_u64m4,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X8)
+
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v0,v8,v2} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v16,v16,v0} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m4.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m4.c
new file mode 100644
index 000000000000..b3ca3ae08bd7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-m4.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e32m4,
+  vuint32m4_t,
+  vuint64m8_t,
+  __riscv_vle32_v_u32m4,
+  __riscv_vle64_v_u64m8,
+  __riscv_vwsubu_wv_u64m8,
+  __riscv_vse64_v_u64m8,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X4)
+
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v0,v0,v12} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v8,v8,v28} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-mf2.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-mf2.c
new file mode 100644
index 000000000000..3332f55c76b9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u32-mf2.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e32m1,
+  vuint32mf2_t,
+  vuint64m1_t,
+  __riscv_vle32_v_u32mf2,
+  __riscv_vle64_v_u64m1,
+  __riscv_vwsubu_wv_u64m1,
+  __riscv_vse64_v_u64m1,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v0,v[0-9]+,v1([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v2,v[0-9]+,v3([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v4,v[0-9]+,v5([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v6,v[0-9]+,v7([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v8,v[0-9]+,v9([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v10,v[0-9]+,v11([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v12,v[0-9]+,v13([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v14,v[0-9]+,v15([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v16,v[0-9]+,v17([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v18,v[0-9]+,v19([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v20,v[0-9]+,v21([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v22,v[0-9]+,v23([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v24,v[0-9]+,v25([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v26,v[0-9]+,v27([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v28,v[0-9]+,v29([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v30,v[0-9]+,v31([^0-9]|$)} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m1.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m1.c
new file mode 100644
index 000000000000..5613fccb4c06
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m1.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e8m1,
+  vuint8m1_t,
+  vuint16m2_t,
+  __riscv_vle8_v_u8m1,
+  __riscv_vle16_v_u16m2,
+  __riscv_vwsubu_wv_u16m2,
+  __riscv_vse16_v_u16m2,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v0,v4,v1([^0-9]|$)} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v2,v2,v25} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m2.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m2.c
new file mode 100644
index 000000000000..24e80cb95775
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m2.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e8m2,
+  vuint8m2_t,
+  vuint16m4_t,
+  __riscv_vle8_v_u8m2,
+  __riscv_vle16_v_u16m4,
+  __riscv_vwsubu_wv_u16m4,
+  __riscv_vse16_v_u16m4,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X8)
+
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v0,v8,v2} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v16,v16,v0} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m4.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m4.c
new file mode 100644
index 000000000000..b18bb869ddf3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-m4.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e8m4,
+  vuint8m4_t,
+  vuint16m8_t,
+  __riscv_vle8_v_u8m4,
+  __riscv_vle16_v_u16m8,
+  __riscv_vwsubu_wv_u16m8,
+  __riscv_vse16_v_u16m8,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X4)
+
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v0,v0,v12} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu\.wv\s+v8,v8,v28} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf2.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf2.c
new file mode 100644
index 000000000000..ef882a7034e4
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf2.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e8m1,
+  vuint8mf2_t,
+  vuint16m1_t,
+  __riscv_vle8_v_u8mf2,
+  __riscv_vle16_v_u16m1,
+  __riscv_vwsubu_wv_u16m1,
+  __riscv_vse16_v_u16m1,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v0,v[0-9]+,v1([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v2,v[0-9]+,v3([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v4,v[0-9]+,v5([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v6,v[0-9]+,v7([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v8,v[0-9]+,v9([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v10,v[0-9]+,v11([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v12,v[0-9]+,v13([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v14,v[0-9]+,v15([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v16,v[0-9]+,v17([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v18,v[0-9]+,v19([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v20,v[0-9]+,v21([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v22,v[0-9]+,v23([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v24,v[0-9]+,v25([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v26,v[0-9]+,v27([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v28,v[0-9]+,v29([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v30,v[0-9]+,v31([^0-9]|$)} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf4.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf4.c
new file mode 100644
index 000000000000..dc6f567916b2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf4.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e8m1,
+  vuint8mf4_t,
+  vuint16mf2_t,
+  __riscv_vle8_v_u8mf4,
+  __riscv_vle16_v_u16mf2,
+  __riscv_vwsubu_wv_u16mf2,
+  __riscv_vse16_v_u16mf2,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v0,v[0-9]+,v1([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v2,v[0-9]+,v3([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v4,v[0-9]+,v5([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v6,v[0-9]+,v7([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v8,v[0-9]+,v9([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v10,v[0-9]+,v11([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v12,v[0-9]+,v13([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v14,v[0-9]+,v15([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v16,v[0-9]+,v17([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v18,v[0-9]+,v19([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v20,v[0-9]+,v21([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v22,v[0-9]+,v23([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v24,v[0-9]+,v25([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v26,v[0-9]+,v27([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v28,v[0-9]+,v29([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v30,v[0-9]+,v31([^0-9]|$)} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf8.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf8.c
new file mode 100644
index 000000000000..267c96d64798
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vwsubu_wv-u8-mf8.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_0(
+  __riscv_vsetvlmax_e8m1,
+  vuint8mf8_t,
+  vuint16mf4_t,
+  __riscv_vle8_v_u8mf8,
+  __riscv_vle16_v_u16mf4,
+  __riscv_vwsubu_wv_u16mf4,
+  __riscv_vse16_v_u16mf4,
+  vwsubu_wv,
+  LOOP_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v0,v[0-9]+,v1([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v2,v[0-9]+,v3([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v4,v[0-9]+,v5([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v6,v[0-9]+,v7([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v8,v[0-9]+,v9([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v10,v[0-9]+,v11([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v12,v[0-9]+,v13([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v14,v[0-9]+,v15([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v16,v[0-9]+,v17([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v18,v[0-9]+,v19([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v20,v[0-9]+,v21([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v22,v[0-9]+,v23([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v24,v[0-9]+,v25([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v26,v[0-9]+,v27([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v28,v[0-9]+,v29([^0-9]|$)} } } */
+/* { dg-final { scan-assembler-not {vwsubu\.wv\s+v30,v[0-9]+,v31([^0-9]|$)} } } */