From: Pan Li <[email protected]>

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/vfwsub_vv-f16-m1.c: New 
test.
        * gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m2.c: New 
test.
        * gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m4.c: New 
test.
        * gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf2.c: New 
test.
        * gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf4.c: New 
test.
        * gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m1.c: New 
test.
        * gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m2.c: New 
test.
        * gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m4.c: New 
test.
        * gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-mf2.c: New 
test.

Signed-off-by: Pan Li <[email protected]>
---
 .../autovec/group_overlap/vfwsub_vv-f16-m1.c  | 17 +++++++++++++++++
 .../autovec/group_overlap/vfwsub_vv-f16-m2.c  | 17 +++++++++++++++++
 .../autovec/group_overlap/vfwsub_vv-f16-m4.c  | 17 +++++++++++++++++
 .../autovec/group_overlap/vfwsub_vv-f16-mf2.c | 19 +++++++++++++++++++
 .../autovec/group_overlap/vfwsub_vv-f16-mf4.c | 19 +++++++++++++++++++
 .../autovec/group_overlap/vfwsub_vv-f32-m1.c  | 17 +++++++++++++++++
 .../autovec/group_overlap/vfwsub_vv-f32-m2.c  | 17 +++++++++++++++++
 .../autovec/group_overlap/vfwsub_vv-f32-m4.c  | 17 +++++++++++++++++
 .../autovec/group_overlap/vfwsub_vv-f32-mf2.c | 19 +++++++++++++++++++
 9 files changed, 159 insertions(+)
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m1.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m2.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m4.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf2.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf4.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m1.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m2.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m4.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-mf2.c

diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m1.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m1.c
new file mode 100644
index 00000000000..685820d2ca9
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m1.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv_zvfh -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_1(
+  __riscv_vsetvlmax_e16m1,
+  vfloat16m1_t,
+  vfloat32m2_t,
+  __riscv_vle16_v_f16m1,
+  __riscv_vfwsub_vv_f32m2,
+  __riscv_vse32_v_f32m2,
+  vfwsub_vv,
+  LOOP_DUAL_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v2,v1,v3([^0-9]|$)} 1 } } */
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v10,v11,v3([^0-9]|$)} 1 } } 
*/
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m2.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m2.c
new file mode 100644
index 00000000000..7ee9272c7be
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m2.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv_zvfh -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_1(
+  __riscv_vsetvlmax_e16m2,
+  vfloat16m2_t,
+  vfloat32m4_t,
+  __riscv_vle16_v_f16m2,
+  __riscv_vfwsub_vv_f32m4,
+  __riscv_vse32_v_f32m4,
+  vfwsub_vv,
+  LOOP_DUAL_WIDEN_BINARY_BODY_X8)
+
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v8,v10,v6([^0-9]|$)} 1 } } 
*/
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v28,v30,v24([^0-9]|$)} 1 } 
} */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m4.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m4.c
new file mode 100644
index 00000000000..cf806befd73
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-m4.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv_zvfh -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_1(
+  __riscv_vsetvlmax_e16m4,
+  vfloat16m4_t,
+  vfloat32m8_t,
+  __riscv_vle16_v_f16m4,
+  __riscv_vfwsub_vv_f32m8,
+  __riscv_vse32_v_f32m8,
+  vfwsub_vv,
+  LOOP_DUAL_WIDEN_BINARY_BODY_X4)
+
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v8,v4,v12([^0-9]|$)} 1 } } 
*/
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v24,v28,v16([^0-9]|$)} 1 } 
} */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf2.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf2.c
new file mode 100644
index 00000000000..c285ff535eb
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf2.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv_zvfh -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_1(
+  __riscv_vsetvlmax_e16m1,
+  vfloat16mf2_t,
+  vfloat32m1_t,
+  __riscv_vle16_v_f16mf2,
+  __riscv_vfwsub_vv_f32m1,
+  __riscv_vse32_v_f32m1,
+  vfwsub_vv,
+  LOOP_DUAL_WIDEN_BINARY_BODY_X16)
+
+/* The fractional LMUL source has EMUL < 1, thus the widened destination
+   register group must not overlap either source at all.  */
+/* { dg-final { scan-assembler-not {vfwsub\.vv\s+(v[0-9]+),\1,} } } */
+/* { dg-final { scan-assembler-not 
{vfwsub\.vv\s+(v[0-9]+),v[0-9]+,\1([^0-9]|$)} } } */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf4.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf4.c
new file mode 100644
index 00000000000..b3dccebfcd3
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f16-mf4.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv_zvfh -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_1(
+  __riscv_vsetvlmax_e16m1,
+  vfloat16mf4_t,
+  vfloat32mf2_t,
+  __riscv_vle16_v_f16mf4,
+  __riscv_vfwsub_vv_f32mf2,
+  __riscv_vse32_v_f32mf2,
+  vfwsub_vv,
+  LOOP_DUAL_WIDEN_BINARY_BODY_X16)
+
+/* The fractional LMUL source has EMUL < 1, thus the widened destination
+   register group must not overlap either source at all.  */
+/* { dg-final { scan-assembler-not {vfwsub\.vv\s+(v[0-9]+),\1,} } } */
+/* { dg-final { scan-assembler-not 
{vfwsub\.vv\s+(v[0-9]+),v[0-9]+,\1([^0-9]|$)} } } */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m1.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m1.c
new file mode 100644
index 00000000000..79adfed1ca5
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m1.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_1(
+  __riscv_vsetvlmax_e32m1,
+  vfloat32m1_t,
+  vfloat64m2_t,
+  __riscv_vle32_v_f32m1,
+  __riscv_vfwsub_vv_f64m2,
+  __riscv_vse64_v_f64m2,
+  vfwsub_vv,
+  LOOP_DUAL_WIDEN_BINARY_BODY_X16)
+
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v2,v1,v3([^0-9]|$)} 1 } } */
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v10,v11,v3([^0-9]|$)} 1 } } 
*/
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m2.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m2.c
new file mode 100644
index 00000000000..b2b7c3b6cd9
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m2.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_1(
+  __riscv_vsetvlmax_e32m2,
+  vfloat32m2_t,
+  vfloat64m4_t,
+  __riscv_vle32_v_f32m2,
+  __riscv_vfwsub_vv_f64m4,
+  __riscv_vse64_v_f64m4,
+  vfwsub_vv,
+  LOOP_DUAL_WIDEN_BINARY_BODY_X8)
+
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v8,v10,v6([^0-9]|$)} 1 } } 
*/
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v28,v30,v24([^0-9]|$)} 1 } 
} */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m4.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m4.c
new file mode 100644
index 00000000000..7b4ae7f501c
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-m4.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_1(
+  __riscv_vsetvlmax_e32m4,
+  vfloat32m4_t,
+  vfloat64m8_t,
+  __riscv_vle32_v_f32m4,
+  __riscv_vfwsub_vv_f64m8,
+  __riscv_vse64_v_f64m8,
+  vfwsub_vv,
+  LOOP_DUAL_WIDEN_BINARY_BODY_X4)
+
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v8,v4,v12([^0-9]|$)} 1 } } 
*/
+/* { dg-final { scan-assembler-times {vfwsub\.vv\s+v24,v28,v16([^0-9]|$)} 1 } 
} */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-mf2.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-mf2.c
new file mode 100644
index 00000000000..21d4f328306
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/group_overlap/vfwsub_vv-f32-mf2.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d" } */
+
+#include "group_overlap.h"
+
+DEF_GROUP_OVERLAP_BINARY_1(
+  __riscv_vsetvlmax_e32m1,
+  vfloat32mf2_t,
+  vfloat64m1_t,
+  __riscv_vle32_v_f32mf2,
+  __riscv_vfwsub_vv_f64m1,
+  __riscv_vse64_v_f64m1,
+  vfwsub_vv,
+  LOOP_DUAL_WIDEN_BINARY_BODY_X16)
+
+/* The fractional LMUL source has EMUL < 1, thus the widened destination
+   register group must not overlap either source at all.  */
+/* { dg-final { scan-assembler-not {vfwsub\.vv\s+(v[0-9]+),\1,} } } */
+/* { dg-final { scan-assembler-not 
{vfwsub\.vv\s+(v[0-9]+),v[0-9]+,\1([^0-9]|$)} } } */
-- 
2.43.0

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