From 0141ee79d72a3bccf040e02cd047fe585b96fa8d Mon Sep 17 00:00:00 2001
From: Juzhe-Zhong <juzhe.zhong@rivai.ai>
Date: Wed, 10 Jan 2024 13:05:38 +0800
Subject: [PATCH] RISC-V: Refine unsigned avg_floor/avg_ceil
This patch is inspired by LLVM patches:
https://github.com/llvm/llvm-project/pull/76550
https://github.com/llvm/llvm-project/pull/77473
Use vaaddu for AVG vectorization.
Before this patch:
vsetivli zero,8,e8,mf2,ta,ma
vle8.v v3,0(a1)
vle8.v v2,0(a2)
vwaddu.vv v1,v3,v2
vsetvli zero,zero,e16,m1,ta,ma
vadd.vi v1,v1,1
vsetvli zero,zero,e8,mf2,ta,ma
vnsrl.wi v1,v1,1
vse8.v v1,0(a0)
ret
After this patch:
vsetivli zero,8,e8,mf2,ta,ma
csrwi vxrm,0
vle8.v v1,0(a1)
vle8.v v2,0(a2)
vaaddu.vv v1,v1,v2
vse8.v v1,0(a0)
ret
Note on signed averaging addition
Based on the rvv spec, there is also a variant for signed averaging addition called vaadd.
But AFAIU, no matter in which rounding mode, we cannot achieve the semantic of signed averaging addition through vaadd.
Thus this patch only introduces vaaddu.
More details in:
https://github.com/riscv/riscv-v-spec/issues/935
https://github.com/riscv/riscv-v-spec/issues/934
Tested on both RV32 and RV64 no regression.
Ok for trunk ?
gcc/ChangeLog:
* config/riscv/autovec.md (<u>avg<v_double_trunc>3_floor): Remove.
(avg<v_double_trunc>3_floor): New pattern.
(<u>avg<v_double_trunc>3_ceil): Remove.
(avg<v_double_trunc>3_ceil): New pattern.
(uavg<mode>3_floor): Ditto.
(uavg<mode>3_ceil): Ditto.
* config/riscv/riscv-protos.h (enum insn_flags): Add for average addition.
(enum insn_type): Ditto.
* config/riscv/riscv-v.cc: Ditto.
* config/riscv/vector-iterators.md (ashiftrt): Remove.
(ASHIFTRT): Ditto.
* config/riscv/vector.md: Add VLS modes.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/autovec/vls/avg-1.c: Adapt test.
* gcc.target/riscv/rvv/autovec/vls/avg-2.c: Ditto.
* gcc.target/riscv/rvv/autovec/vls/avg-3.c: Ditto.
* gcc.target/riscv/rvv/autovec/vls/avg-4.c: Ditto.
* gcc.target/riscv/rvv/autovec/vls/avg-5.c: Ditto.
* gcc.target/riscv/rvv/autovec/vls/avg-6.c: Ditto.
* gcc.target/riscv/rvv/autovec/widen/vec-avg-rv32gcv.c: Ditto.
* gcc.target/riscv/rvv/autovec/widen/vec-avg-rv64gcv.c: Ditto.
---
gcc/config/riscv/autovec.md | 50 ++++++++++++++-----
gcc/config/riscv/riscv-protos.h | 8 +++
gcc/config/riscv/riscv-v.cc | 11 ++++
gcc/config/riscv/vector-iterators.md | 5 --
gcc/config/riscv/vector.md | 12 ++---
.../gcc.target/riscv/rvv/autovec/vls/avg-1.c | 4 +-
.../gcc.target/riscv/rvv/autovec/vls/avg-2.c | 4 +-
.../gcc.target/riscv/rvv/autovec/vls/avg-3.c | 4 +-
.../gcc.target/riscv/rvv/autovec/vls/avg-4.c | 6 +--
.../gcc.target/riscv/rvv/autovec/vls/avg-5.c | 6 +--
.../gcc.target/riscv/rvv/autovec/vls/avg-6.c | 6 +--
.../riscv/rvv/autovec/widen/vec-avg-rv32gcv.c | 7 +--
.../riscv/rvv/autovec/widen/vec-avg-rv64gcv.c | 7 +--
13 files changed, 86 insertions(+), 44 deletions(-)
diff --git a/gcc/config/riscv/autovec.md b/gcc/config/riscv/autovec.md
index 775eaa825b0c..706cd9717cb1 100644
--- a/gcc/config/riscv/autovec.md
+++ b/gcc/config/riscv/autovec.md
@@ -2345,39 +2345,39 @@
;; op[0] = (narrow) ((wide) op[1] + (wide) op[2] + 1)) >> 1;
;; -------------------------------------------------------------------------
-(define_expand "<u>avg<v_double_trunc>3_floor"
+(define_expand "avg<v_double_trunc>3_floor"
[(set (match_operand:<V_DOUBLE_TRUNC> 0 "register_operand")
(truncate:<V_DOUBLE_TRUNC>
- (<ext_to_rshift>:VWEXTI
+ (ashiftrt:VWEXTI
(plus:VWEXTI
- (any_extend:VWEXTI
+ (sign_extend:VWEXTI
(match_operand:<V_DOUBLE_TRUNC> 1 "register_operand"))
- (any_extend:VWEXTI
+ (sign_extend:VWEXTI
(match_operand:<V_DOUBLE_TRUNC> 2 "register_operand"))))))]
"TARGET_VECTOR"
{
/* First emit a widening addition. */
rtx tmp1 = gen_reg_rtx (<MODE>mode);
rtx ops1[] = {tmp1, operands[1], operands[2]};
- insn_code icode = code_for_pred_dual_widen (PLUS, <CODE>, <MODE>mode);
+ insn_code icode = code_for_pred_dual_widen (PLUS, SIGN_EXTEND, <MODE>mode);
riscv_vector::emit_vlmax_insn (icode, riscv_vector::BINARY_OP, ops1);
/* Then a narrowing shift. */
rtx ops2[] = {operands[0], tmp1, const1_rtx};
- icode = code_for_pred_narrow_scalar (<EXT_TO_RSHIFT>, <MODE>mode);
+ icode = code_for_pred_narrow_scalar (ASHIFTRT, <MODE>mode);
riscv_vector::emit_vlmax_insn (icode, riscv_vector::BINARY_OP, ops2);
DONE;
})
-(define_expand "<u>avg<v_double_trunc>3_ceil"
+(define_expand "avg<v_double_trunc>3_ceil"
[(set (match_operand:<V_DOUBLE_TRUNC> 0 "register_operand")
(truncate:<V_DOUBLE_TRUNC>
- (<ext_to_rshift>:VWEXTI
+ (ashiftrt:VWEXTI
(plus:VWEXTI
(plus:VWEXTI
- (any_extend:VWEXTI
+ (sign_extend:VWEXTI
(match_operand:<V_DOUBLE_TRUNC> 1 "register_operand"))
- (any_extend:VWEXTI
+ (sign_extend:VWEXTI
(match_operand:<V_DOUBLE_TRUNC> 2 "register_operand")))
(const_int 1)))))]
"TARGET_VECTOR"
@@ -2385,7 +2385,7 @@
/* First emit a widening addition. */
rtx tmp1 = gen_reg_rtx (<MODE>mode);
rtx ops1[] = {tmp1, operands[1], operands[2]};
- insn_code icode = code_for_pred_dual_widen (PLUS, <CODE>, <MODE>mode);
+ insn_code icode = code_for_pred_dual_widen (PLUS, SIGN_EXTEND, <MODE>mode);
riscv_vector::emit_vlmax_insn (icode, riscv_vector::BINARY_OP, ops1);
/* Then add 1. */
@@ -2396,11 +2396,37 @@
/* Finally, a narrowing shift. */
rtx ops3[] = {operands[0], tmp2, const1_rtx};
- icode = code_for_pred_narrow_scalar (<EXT_TO_RSHIFT>, <MODE>mode);
+ icode = code_for_pred_narrow_scalar (ASHIFTRT, <MODE>mode);
riscv_vector::emit_vlmax_insn (icode, riscv_vector::BINARY_OP, ops3);
DONE;
})
+;; csrwi vxrm, 2
+;; vaaddu.vv vd, vs2, vs1
+(define_expand "uavg<mode>3_floor"
+ [(match_operand:V_VLSI 0 "register_operand")
+ (match_operand:V_VLSI 1 "register_operand")
+ (match_operand:V_VLSI 2 "register_operand")]
+ "TARGET_VECTOR"
+{
+ insn_code icode = code_for_pred (UNSPEC_VAADDU, <MODE>mode);
+ riscv_vector::emit_vlmax_insn (icode, riscv_vector::BINARY_OP_VXRM_RDN, operands);
+ DONE;
+})
+
+;; csrwi vxrm, 0
+;; vaaddu.vv vd, vs2, vs1
+(define_expand "uavg<mode>3_ceil"
+ [(match_operand:V_VLSI 0 "register_operand")
+ (match_operand:V_VLSI 1 "register_operand")
+ (match_operand:V_VLSI 2 "register_operand")]
+ "TARGET_VECTOR"
+{
+ insn_code icode = code_for_pred (UNSPEC_VAADDU, <MODE>mode);
+ riscv_vector::emit_vlmax_insn (icode, riscv_vector::BINARY_OP_VXRM_RNU, operands);
+ DONE;
+})
+
;; -------------------------------------------------------------------------
;; ---- [FP] Rounding.
;; -------------------------------------------------------------------------
diff --git a/gcc/config/riscv/riscv-protos.h b/gcc/config/riscv/riscv-protos.h
index 00a5b645abe0..fc0097acde39 100644
--- a/gcc/config/riscv/riscv-protos.h
+++ b/gcc/config/riscv/riscv-protos.h
@@ -366,6 +366,12 @@ enum insn_flags : unsigned int
/* Means INSN has FRM operand and the value is FRM_RNE. */
FRM_RNE_P = 1 << 19,
+
+ /* Means INSN has VXRM operand and the value is VXRM_RNU. */
+ VXRM_RNU_P = 1 << 20,
+
+ /* Means INSN has VXRM operand and the value is VXRM_RDN. */
+ VXRM_RDN_P = 1 << 21,
};
enum insn_type : unsigned int
@@ -426,6 +432,8 @@ enum insn_type : unsigned int
BINARY_OP_TAMU = __MASK_OP_TAMU | BINARY_OP_P,
BINARY_OP_TUMA = __MASK_OP_TUMA | BINARY_OP_P,
BINARY_OP_FRM_DYN = BINARY_OP | FRM_DYN_P,
+ BINARY_OP_VXRM_RNU = BINARY_OP | VXRM_RNU_P,
+ BINARY_OP_VXRM_RDN = BINARY_OP | VXRM_RDN_P,
/* Ternary operator. Always have real merge operand. */
TERNARY_OP = HAS_DEST_P | HAS_MASK_P | USE_ALL_TRUES_MASK_P | HAS_MERGE_P
diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc
index 2491522191a1..7ae579ba8901 100644
--- a/gcc/config/riscv/riscv-v.cc
+++ b/gcc/config/riscv/riscv-v.cc
@@ -207,6 +207,13 @@ public:
add_input_operand (frm_rtx, Pmode);
}
+ void
+ add_rounding_mode_operand (enum fixed_point_rounding_mode rounding_mode)
+ {
+ rtx frm_rtx = gen_int_mode (rounding_mode, Pmode);
+ add_input_operand (frm_rtx, Pmode);
+ }
+
/* Return the vtype mode based on insn_flags.
vtype mode mean the mode vsetvl insn set. */
machine_mode
@@ -334,6 +341,10 @@ public:
add_rounding_mode_operand (FRM_RMM);
else if (m_insn_flags & FRM_RNE_P)
add_rounding_mode_operand (FRM_RNE);
+ else if (m_insn_flags & VXRM_RNU_P)
+ add_rounding_mode_operand (VXRM_RNU);
+ else if (m_insn_flags & VXRM_RDN_P)
+ add_rounding_mode_operand (VXRM_RDN);
gcc_assert (insn_data[(int) icode].n_operands == m_opno);
expand (icode, any_mem_p);
diff --git a/gcc/config/riscv/vector-iterators.md b/gcc/config/riscv/vector-iterators.md
index b4a276dc2c89..c2ea7e8b10ac 100644
--- a/gcc/config/riscv/vector-iterators.md
+++ b/gcc/config/riscv/vector-iterators.md
@@ -3581,11 +3581,6 @@
(define_code_attr nmsub_nmadd [(plus "nmsub") (minus "nmadd")])
(define_code_attr nmsac_nmacc [(plus "nmsac") (minus "nmacc")])
-(define_code_attr ext_to_rshift [(sign_extend "ashiftrt")
- (zero_extend "lshiftrt")])
-(define_code_attr EXT_TO_RSHIFT [(sign_extend "ASHIFTRT")
- (zero_extend "LSHIFTRT")])
-
(define_code_iterator and_ior [and ior])
(define_code_iterator any_float_binop [plus mult minus div])
diff --git a/gcc/config/riscv/vector.md b/gcc/config/riscv/vector.md
index 24b7b4394bee..c1a282a27b30 100644
--- a/gcc/config/riscv/vector.md
+++ b/gcc/config/riscv/vector.md
@@ -4239,8 +4239,8 @@
(set_attr "mode" "<MODE>")])
(define_insn "@pred_<sat_op><mode>"
- [(set (match_operand:VI 0 "register_operand" "=vd, vd, vr, vr")
- (if_then_else:VI
+ [(set (match_operand:V_VLSI 0 "register_operand" "=vd, vd, vr, vr")
+ (if_then_else:V_VLSI
(unspec:<VM>
[(match_operand:<VM> 1 "vector_mask_operand" " vm, vm,Wc1,Wc1")
(match_operand 5 "vector_length_operand" " rK, rK, rK, rK")
@@ -4251,10 +4251,10 @@
(reg:SI VL_REGNUM)
(reg:SI VTYPE_REGNUM)
(reg:SI VXRM_REGNUM)] UNSPEC_VPREDICATE)
- (unspec:VI
- [(match_operand:VI 3 "register_operand" " vr, vr, vr, vr")
- (match_operand:VI 4 "register_operand" " vr, vr, vr, vr")] VSAT_OP)
- (match_operand:VI 2 "vector_merge_operand" " vu, 0, vu, 0")))]
+ (unspec:V_VLSI
+ [(match_operand:V_VLSI 3 "register_operand" " vr, vr, vr, vr")
+ (match_operand:V_VLSI 4 "register_operand" " vr, vr, vr, vr")] VSAT_OP)
+ (match_operand:V_VLSI 2 "vector_merge_operand" " vu, 0, vu, 0")))]
"TARGET_VECTOR"
"v<sat_op>.vv\t%0,%3,%4%p1"
[(set_attr "type" "<sat_insn_type>")
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-1.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-1.c
index d53bd3a386ad..2327a3d018e1 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-1.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-1.c
@@ -26,9 +26,9 @@ DEF_AVG_FLOOR (uint8_t, uint16_t, 1024)
DEF_AVG_FLOOR (uint8_t, uint16_t, 2048)
/* { dg-final { scan-assembler-times {vwadd\.vv} 10 } } */
-/* { dg-final { scan-assembler-times {vwaddu\.vv} 10 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*2} 10 } } */
/* { dg-final { scan-assembler-times {vnsra\.wi} 10 } } */
-/* { dg-final { scan-assembler-times {vnsrl\.wi} 10 } } */
+/* { dg-final { scan-assembler-times {vaaddu\.vv} 10 } } */
/* { dg-final { scan-assembler-not {csrr} } } */
/* { dg-final { scan-tree-dump-not "1,1" "optimized" } } */
/* { dg-final { scan-tree-dump-not "2,2" "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-2.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-2.c
index 68d1df73a5fb..8030810fdbd1 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-2.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-2.c
@@ -24,9 +24,9 @@ DEF_AVG_FLOOR (uint16_t, uint32_t, 512)
DEF_AVG_FLOOR (uint16_t, uint32_t, 1024)
/* { dg-final { scan-assembler-times {vwadd\.vv} 9 } } */
-/* { dg-final { scan-assembler-times {vwaddu\.vv} 9 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*2} 9 } } */
/* { dg-final { scan-assembler-times {vnsra\.wi} 9 } } */
-/* { dg-final { scan-assembler-times {vnsrl\.wi} 9 } } */
+/* { dg-final { scan-assembler-times {vaaddu\.vv} 9 } } */
/* { dg-final { scan-assembler-not {csrr} } } */
/* { dg-final { scan-tree-dump-not "1,1" "optimized" } } */
/* { dg-final { scan-tree-dump-not "2,2" "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-3.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-3.c
index 07ffab61f678..dce0ffa346e6 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-3.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-3.c
@@ -22,9 +22,9 @@ DEF_AVG_FLOOR (uint32_t, uint64_t, 256)
DEF_AVG_FLOOR (uint32_t, uint64_t, 512)
/* { dg-final { scan-assembler-times {vwadd\.vv} 8 } } */
-/* { dg-final { scan-assembler-times {vwaddu\.vv} 8 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*2} 8 } } */
/* { dg-final { scan-assembler-times {vnsra\.wi} 8 } } */
-/* { dg-final { scan-assembler-times {vnsrl\.wi} 8 } } */
+/* { dg-final { scan-assembler-times {vaaddu\.vv} 8 } } */
/* { dg-final { scan-assembler-not {csrr} } } */
/* { dg-final { scan-tree-dump-not "1,1" "optimized" } } */
/* { dg-final { scan-tree-dump-not "2,2" "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-4.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-4.c
index 83e219ca09a9..65912fb39f2f 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-4.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-4.c
@@ -26,10 +26,10 @@ DEF_AVG_CEIL (uint8_t, uint16_t, 1024)
DEF_AVG_CEIL (uint8_t, uint16_t, 2048)
/* { dg-final { scan-assembler-times {vwadd\.vv} 10 } } */
-/* { dg-final { scan-assembler-times {vwaddu\.vv} 10 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*0} 10 } } */
/* { dg-final { scan-assembler-times {vnsra\.wi} 10 } } */
-/* { dg-final { scan-assembler-times {vnsrl\.wi} 10 } } */
-/* { dg-final { scan-assembler-times {vadd\.vi} 20 } } */
+/* { dg-final { scan-assembler-times {vaaddu\.vv} 10 } } */
+/* { dg-final { scan-assembler-times {vadd\.vi} 10 } } */
/* { dg-final { scan-assembler-not {csrr} } } */
/* { dg-final { scan-tree-dump-not "1,1" "optimized" } } */
/* { dg-final { scan-tree-dump-not "2,2" "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-5.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-5.c
index 325faeaa9303..a197b24c234b 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-5.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-5.c
@@ -24,10 +24,10 @@ DEF_AVG_CEIL (uint16_t, uint32_t, 512)
DEF_AVG_CEIL (uint16_t, uint32_t, 1024)
/* { dg-final { scan-assembler-times {vwadd\.vv} 9 } } */
-/* { dg-final { scan-assembler-times {vwaddu\.vv} 9 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*0} 9 } } */
/* { dg-final { scan-assembler-times {vnsra\.wi} 9 } } */
-/* { dg-final { scan-assembler-times {vnsrl\.wi} 9 } } */
-/* { dg-final { scan-assembler-times {vadd\.vi} 18 } } */
+/* { dg-final { scan-assembler-times {vaaddu\.vv} 9 } } */
+/* { dg-final { scan-assembler-times {vadd\.vi} 9 } } */
/* { dg-final { scan-assembler-not {csrr} } } */
/* { dg-final { scan-tree-dump-not "1,1" "optimized" } } */
/* { dg-final { scan-tree-dump-not "2,2" "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-6.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-6.c
index d836428c7f46..a53de71a01b0 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-6.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/avg-6.c
@@ -22,10 +22,10 @@ DEF_AVG_CEIL (uint16_t, uint32_t, 256)
DEF_AVG_CEIL (uint16_t, uint32_t, 512)
/* { dg-final { scan-assembler-times {vwadd\.vv} 8 } } */
-/* { dg-final { scan-assembler-times {vwaddu\.vv} 8 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*0} 8 } } */
/* { dg-final { scan-assembler-times {vnsra\.wi} 8 } } */
-/* { dg-final { scan-assembler-times {vnsrl\.wi} 8 } } */
-/* { dg-final { scan-assembler-times {vadd\.vi} 16 } } */
+/* { dg-final { scan-assembler-times {vaaddu\.vv} 8 } } */
+/* { dg-final { scan-assembler-times {vadd\.vi} 8 } } */
/* { dg-final { scan-assembler-not {csrr} } } */
/* { dg-final { scan-tree-dump-not "1,1" "optimized" } } */
/* { dg-final { scan-tree-dump-not "2,2" "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/widen/vec-avg-rv32gcv.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/widen/vec-avg-rv32gcv.c
index e2754339d942..6874a3dab1b6 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/widen/vec-avg-rv32gcv.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/widen/vec-avg-rv32gcv.c
@@ -4,7 +4,8 @@
#include "vec-avg-template.h"
/* { dg-final { scan-assembler-times {\tvwadd\.vv} 6 } } */
-/* { dg-final { scan-assembler-times {\tvwaddu\.vv} 6 } } */
-/* { dg-final { scan-assembler-times {\tvadd\.vi} 6 } } */
-/* { dg-final { scan-assembler-times {\tvnsrl.wi} 6 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*0} 3 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*2} 3 } } */
+/* { dg-final { scan-assembler-times {\tvadd\.vi} 3 } } */
/* { dg-final { scan-assembler-times {\tvnsra.wi} 6 } } */
+/* { dg-final { scan-assembler-times {vaaddu\.vv} 6 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/widen/vec-avg-rv64gcv.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/widen/vec-avg-rv64gcv.c
index 1f0ef29566dd..06f35e148123 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/widen/vec-avg-rv64gcv.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/widen/vec-avg-rv64gcv.c
@@ -4,7 +4,8 @@
#include "vec-avg-template.h"
/* { dg-final { scan-assembler-times {\tvwadd\.vv} 6 } } */
-/* { dg-final { scan-assembler-times {\tvwaddu\.vv} 6 } } */
-/* { dg-final { scan-assembler-times {\tvadd\.vi} 6 } } */
-/* { dg-final { scan-assembler-times {\tvnsrl\.wi} 6 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*0} 3 } } */
+/* { dg-final { scan-assembler-times {csrwi\s*vxrm,\s*2} 3 } } */
+/* { dg-final { scan-assembler-times {\tvadd\.vi} 3 } } */
/* { dg-final { scan-assembler-times {\tvnsra\.wi} 6 } } */
+/* { dg-final { scan-assembler-times {vaaddu\.vv} 6 } } */
--
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