[gcc(refs/vendors/riscv/heads/gcc-15-with-riscv-opts)] RISC-V: Add testcases for vec_duplicate + vadd.vv combine when GR2VR cost 1

[Jeff Law]

https://gcc.gnu.org/g:ac1c8232d0a46ecfc93b27d178b3e7b8264496b7

commit ac1c8232d0a46ecfc93b27d178b3e7b8264496b7
Author: Pan Li <pan2.li@intel.com>
Date:   Sat May 3 11:27:50 2025 +0800

    RISC-V: Add testcases for vec_duplicate + vadd.vv combine when GR2VR cost 1
    
    Add asm dump check and for vec_duplicate + vadd.vv combine to vadd.vx.
    The late-combine will not take action when GR2VR cost is 1.
    
    The below test suites are passed for this patch.
    * The rv64gcv fully regression test.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i16.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i32.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i64.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i8.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u16.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u32.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u64.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u8.c: New test.
    
    Signed-off-by: Pan Li <pan2.li@intel.com>
    (cherry picked from commit c10491efc108bd4fc2d983bcabb50506d09e2a17)

Diff:
---
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i16.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i32.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i64.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i8.c  | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u16.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u32.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u64.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u8.c  | 8 ++++++++
 8 files changed, 64 insertions(+)

diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i16.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i16.c
new file mode 100644
index 000000000000..eb19938afe56
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i16.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=1" } */
+
+#include "vx_binary.h"
+
+DEF_VX_BINARY(int16_t, +)
+
+/* { dg-final { scan-assembler-not {vadd.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i32.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i32.c
new file mode 100644
index 000000000000..24182c51811e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i32.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=1" } */
+
+#include "vx_binary.h"
+
+DEF_VX_BINARY(int32_t, +)
+
+/* { dg-final { scan-assembler-not {vadd.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i64.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i64.c
new file mode 100644
index 000000000000..b3d3d4b7d209
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i64.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=1" } */
+
+#include "vx_binary.h"
+
+DEF_VX_BINARY(int64_t, +)
+
+/* { dg-final { scan-assembler-not {vadd.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i8.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i8.c
new file mode 100644
index 000000000000..fb353151b53c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-i8.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=1" } */
+
+#include "vx_binary.h"
+
+DEF_VX_BINARY(int8_t, +)
+
+/* { dg-final { scan-assembler-not {vadd.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u16.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u16.c
new file mode 100644
index 000000000000..6ba265893f15
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u16.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=1" } */
+
+#include "vx_binary.h"
+
+DEF_VX_BINARY(uint16_t, +)
+
+/* { dg-final { scan-assembler-not {vadd.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u32.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u32.c
new file mode 100644
index 000000000000..b60412cecfa1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u32.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=1" } */
+
+#include "vx_binary.h"
+
+DEF_VX_BINARY(uint32_t, +)
+
+/* { dg-final { scan-assembler-not {vadd.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u64.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u64.c
new file mode 100644
index 000000000000..a2732943e90a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u64.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=1" } */
+
+#include "vx_binary.h"
+
+DEF_VX_BINARY(uint64_t, +)
+
+/* { dg-final { scan-assembler-not {vadd.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u8.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u8.c
new file mode 100644
index 000000000000..f3c41f9ebb82
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-2-u8.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=1" } */
+
+#include "vx_binary.h"
+
+DEF_VX_BINARY(uint8_t, +)
+
+/* { dg-final { scan-assembler-not {vadd.vx} } } */