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

[Jeff Law]

https://gcc.gnu.org/g:aa7ff6368cbc763f33d746b4aefff161ab7212e2

commit aa7ff6368cbc763f33d746b4aefff161ab7212e2
Author: Pan Li <pan2.li@intel.com>
Date:   Sat May 3 11:37:09 2025 +0800

    RISC-V: Add testcases for vec_duplicate + vadd.vv combine when GR2VR cost 15
    
    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 15.
    
    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-3-i16.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i32.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i64.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i8.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u16.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u32.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u64.c: New test.
            * gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u8.c: New test.
    
    Signed-off-by: Pan Li <pan2.li@intel.com>
    (cherry picked from commit b3a32804bebb9520b327b7cbf3e8f8b4730f9bd6)

Diff:
---
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i16.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i32.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i64.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i8.c  | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u16.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u32.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u64.c | 8 ++++++++
 gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u8.c  | 8 ++++++++
 8 files changed, 64 insertions(+)

diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i16.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i16.c
new file mode 100644
index 000000000000..f3a262711a4a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i16.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=15" } */
+
+#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-3-i32.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i32.c
new file mode 100644
index 000000000000..490854cfbd7b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i32.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=15" } */
+
+#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-3-i64.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i64.c
new file mode 100644
index 000000000000..a7448dfa56b0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i64.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=15" } */
+
+#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-3-i8.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i8.c
new file mode 100644
index 000000000000..72c7cd803fac
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-i8.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=15" } */
+
+#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-3-u16.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u16.c
new file mode 100644
index 000000000000..552b4ed7c2fa
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u16.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=15" } */
+
+#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-3-u32.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u32.c
new file mode 100644
index 000000000000..e319672fc044
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u32.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=15" } */
+
+#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-3-u64.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u64.c
new file mode 100644
index 000000000000..6e2a89e90727
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u64.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=15" } */
+
+#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-3-u8.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u8.c
new file mode 100644
index 000000000000..d3383e25b017
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vadd-3-u8.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d --param=gpr2vr-cost=15" } */
+
+#include "vx_binary.h"
+
+DEF_VX_BINARY(uint8_t, +)
+
+/* { dg-final { scan-assembler-not {vadd.vx} } } */