From: Pan Li <pan2...@intel.com>

Add asm dump check and run test for vec_duplicate + vwsubu.vv
combine to vwsubu.vx, with the GR2VR cost is 0, 2 and 15.

gcc/testsuite/ChangeLog:

        * gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u16.c: Add asm check
        for vwsubu.vx.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u32.c: Ditto.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u64.c: Ditto.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u16.c: Ditto.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u32.c: Ditto.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u64.c: Ditto.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u16.c: Ditto.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u32.c: Ditto.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u64.c: Ditto.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx_widen.h: Ditto.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx_widen_data.h: Add test
        data for run test.
        * gcc.target/riscv/rvv/autovec/vx_vf/vx_vwsubu-run-1-u64.c: New test.

Signed-off-by: Pan Li <pan2...@intel.com>
---
 .../riscv/rvv/autovec/vx_vf/vx-1-u16.c        |  1 +
 .../riscv/rvv/autovec/vx_vf/vx-1-u32.c        |  1 +
 .../riscv/rvv/autovec/vx_vf/vx-1-u64.c        |  1 +
 .../riscv/rvv/autovec/vx_vf/vx-2-u16.c        |  1 +
 .../riscv/rvv/autovec/vx_vf/vx-2-u32.c        |  1 +
 .../riscv/rvv/autovec/vx_vf/vx-2-u64.c        |  1 +
 .../riscv/rvv/autovec/vx_vf/vx-3-u16.c        |  1 +
 .../riscv/rvv/autovec/vx_vf/vx-3-u32.c        |  1 +
 .../riscv/rvv/autovec/vx_vf/vx-3-u64.c        |  1 +
 .../rvv/autovec/vx_vf/vx_vwsubu-run-1-u64.c   | 18 +++++++++
 .../riscv/rvv/autovec/vx_vf/vx_widen.h        |  5 ++-
 .../riscv/rvv/autovec/vx_vf/vx_widen_data.h   | 40 +++++++++++++++++++
 12 files changed, 70 insertions(+), 2 deletions(-)
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vwsubu-run-1-u64.c

diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u16.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u16.c
index bb29ef5638c..25bb93c8ce5 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u16.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u16.c
@@ -30,3 +30,4 @@ TEST_WIDEN_BINARY_VX_UNSIGNED(T, NT)
 /* { dg-final { scan-assembler-times {vmadd.vx} 1 } } */
 /* { dg-final { scan-assembler-times {vnmsub.vx} 1 } } */
 /* { dg-final { scan-assembler-not {vwaddu.vx} } } */
+/* { dg-final { scan-assembler-not {vwsubu.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u32.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u32.c
index 1d738571b49..475b74b10f0 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u32.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u32.c
@@ -30,3 +30,4 @@ TEST_WIDEN_BINARY_VX_UNSIGNED(T, NT)
 /* { dg-final { scan-assembler-times {vmadd.vx} 1 } } */
 /* { dg-final { scan-assembler-times {vnmsub.vx} 1 } } */
 /* { dg-final { scan-assembler-not {vwaddu.vx} } } */
+/* { dg-final { scan-assembler-not {vwsubu.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u64.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u64.c
index dc6d1c6b183..c7f3f2b25d4 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u64.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-1-u64.c
@@ -33,3 +33,4 @@ TEST_WIDEN_BINARY_VX_UNSIGNED(T, NT)
 /* { dg-final { scan-assembler-times {vmadd.vx} 1 } } */
 /* { dg-final { scan-assembler-times {vnmsub.vx} 1 } } */
 /* { dg-final { scan-assembler-times {vwaddu.vx} 1 } } */
+/* { dg-final { scan-assembler-times {vwsubu.vx} 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u16.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u16.c
index c6da9c7e19d..1c0024c273e 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u16.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u16.c
@@ -30,3 +30,4 @@ TEST_WIDEN_BINARY_VX_UNSIGNED(T, NT)
 /* { dg-final { scan-assembler-not {vmadd.vx} } } */
 /* { dg-final { scan-assembler-not {vnmsub.vx} } } */
 /* { dg-final { scan-assembler-not {vwaddu.vx} } } */
+/* { dg-final { scan-assembler-not {vwsubu.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u32.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u32.c
index 6f1adef686c..3e88fc0623f 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u32.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u32.c
@@ -30,3 +30,4 @@ TEST_WIDEN_BINARY_VX_UNSIGNED(T, NT)
 /* { dg-final { scan-assembler-not {vmadd.vx} } } */
 /* { dg-final { scan-assembler-not {vnmsub.vx} } } */
 /* { dg-final { scan-assembler-not {vwaddu.vx} } } */
+/* { dg-final { scan-assembler-not {vwsubu.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u64.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u64.c
index 5ea7cc96ae6..541b6e678b9 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u64.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-2-u64.c
@@ -30,3 +30,4 @@ TEST_WIDEN_BINARY_VX_UNSIGNED(T, NT)
 /* { dg-final { scan-assembler-not {vmadd.vx} } } */
 /* { dg-final { scan-assembler-not {vnmsub.vx} } } */
 /* { dg-final { scan-assembler-not {vwaddu.vx} } } */
+/* { dg-final { scan-assembler-not {vwsubu.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u16.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u16.c
index f18409e7643..6d25e26d83b 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u16.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u16.c
@@ -30,3 +30,4 @@ TEST_WIDEN_BINARY_VX_UNSIGNED(T, NT)
 /* { dg-final { scan-assembler-not {vmadd.vx} } } */
 /* { dg-final { scan-assembler-not {vnmsub.vx} } } */
 /* { dg-final { scan-assembler-not {vwaddu.vx} } } */
+/* { dg-final { scan-assembler-not {vwsubu.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u32.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u32.c
index b33d8269136..f0c6624a536 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u32.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u32.c
@@ -30,3 +30,4 @@ TEST_WIDEN_BINARY_VX_UNSIGNED(T, NT)
 /* { dg-final { scan-assembler-not {vmadd.vx} } } */
 /* { dg-final { scan-assembler-not {vnmsub.vx} } } */
 /* { dg-final { scan-assembler-not {vwaddu.vx} } } */
+/* { dg-final { scan-assembler-not {vwsubu.vx} } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u64.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u64.c
index 40f4142a88a..8de1d6fd807 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u64.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx-3-u64.c
@@ -30,3 +30,4 @@ TEST_WIDEN_BINARY_VX_UNSIGNED(T, NT)
 /* { dg-final { scan-assembler-not {vmadd.vx} } } */
 /* { dg-final { scan-assembler-not {vnmsub.vx} } } */
 /* { dg-final { scan-assembler-not {vwaddu.vx} } } */
+/* { dg-final { scan-assembler-not {vwsubu.vx} } } */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vwsubu-run-1-u64.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vwsubu-run-1-u64.c
new file mode 100644
index 00000000000..f94281002ea
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_vwsubu-run-1-u64.c
@@ -0,0 +1,18 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99 --param=gpr2vr-cost=0" } */
+
+#include "vx_widen.h"
+#include "vx_widen_data.h"
+
+#define WT        uint64_t
+#define NT        uint32_t
+#define NAME      sub
+#define TEST_DATA DEF_BINARY_WIDEN_STRUCT_0_VAR_WRAP(WT, NT, NAME)
+#define DATA_TYPE DEF_BINARY_WIDEN_STRUCT_0_TYPE_WRAP(WT, NT, NAME)
+
+DEF_VX_WIDEN_BINARY_CASE_0_WRAP(WT, NT, -, NAME)
+
+#define TEST_RUN(WT, NT, NAME, vd, vs2, rs1, N) \
+  RUN_VX_WIDEN_BINARY_CASE_0_WRAP(WT, NT, NAME, vd, vs2, rs1, N)
+
+#include "vx_widen_vx_run.h"
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_widen.h 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_widen.h
index 646edab4310..290d8a4b5d4 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_widen.h
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_widen.h
@@ -28,7 +28,8 @@ test_vx_widen_binary_##NAME##_##WT##_##NT##_case_0 (WT * 
restrict vd,   \
 #define RUN_VX_WIDEN_BINARY_CASE_0_WRAP(WT, NT, NAME, vd, vs2, rs1, n) \
   RUN_VX_WIDEN_BINARY_CASE_0(WT, NT, NAME, vd, vs2, rs1, n)
 
-#define TEST_WIDEN_BINARY_VX_UNSIGNED(WT, NT) \
-  DEF_VX_WIDEN_BINARY_CASE_0_WRAP(WT, NT, +, add)
+#define TEST_WIDEN_BINARY_VX_UNSIGNED(WT, NT)     \
+  DEF_VX_WIDEN_BINARY_CASE_0_WRAP(WT, NT, +, add) \
+  DEF_VX_WIDEN_BINARY_CASE_0_WRAP(WT, NT, -, sub)
 
 #endif
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_widen_data.h 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_widen_data.h
index 48dc4d4c849..7359f0bc85d 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_widen_data.h
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vx_vf/vx_widen_data.h
@@ -36,6 +36,7 @@
   DEF_BINARY_WIDEN_STRUCT_0(WT, NT, NAME)
 
 DEF_BINARY_WIDEN_STRUCT_0_WRAP(uint64_t, uint32_t, add)
+DEF_BINARY_WIDEN_STRUCT_0_WRAP(uint64_t, uint32_t, sub)
 
 DEF_BINARY_WIDEN_STRUCT_0_DECL_WRAP(uint64_t, uint32_t, add)[] = {
   {
@@ -76,4 +77,43 @@ DEF_BINARY_WIDEN_STRUCT_0_DECL_WRAP(uint64_t, uint32_t, 
add)[] = {
   },
 };
 
+DEF_BINARY_WIDEN_STRUCT_0_DECL_WRAP(uint64_t, uint32_t, sub)[] = {
+  {
+    /* vs2 */
+    {
+      2147483648, 2147483648, 2147483648, 2147483648,
+      2147483647, 2147483647, 2147483647, 2147483647,
+      4294967294, 4294967294, 4294967294, 4294967294,
+      4294967295, 4294967295, 4294967295, 4294967295,
+    },
+    /* rs1 */
+    2147483647,
+    /* expect */
+    {
+               1,          1,          1,          1,
+               0,          0,          0,          0,
+      2147483647, 2147483647, 2147483647, 2147483647,
+      2147483648, 2147483648, 2147483648, 2147483648,
+    },
+  },
+  {
+    /* vs2 */
+    {
+      4294967295ull, 4294967295ull, 4294967295ull, 4294967295ull,
+      4294967294ull, 4294967294ull, 4294967294ull, 4294967294ull,
+                  1,             1,             1,             1,
+                  0,             0,             0,             0,
+    },
+    /* rs1 */
+    4294967295,
+    /* expect */
+    {
+                           0,                       0,                       
0,                       0,
+     18446744073709551615ull, 18446744073709551615ull, 
18446744073709551615ull, 18446744073709551615ull,
+     18446744069414584322ull, 18446744069414584322ull, 
18446744069414584322ull, 18446744069414584322ull, 
+     18446744069414584321ull, 18446744069414584321ull, 
18446744069414584321ull, 18446744069414584321ull, 
+    },
+  },
+};
+
 #endif
-- 
2.43.0

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