* [PATCH v2] RISC-V: FAIL:g++.dg/torture/vshuf-v[2|4]di.C -Os (execution test) on RV32
@ 2023-12-05 8:38 Li Xu
2023-12-05 8:41 ` juzhe.zhong
0 siblings, 1 reply; 3+ messages in thread
From: Li Xu @ 2023-12-05 8:38 UTC (permalink / raw)
To: gcc-patches; +Cc: kito.cheng, palmer, juzhe.zhong, xuli
From: xuli <xuli1@eswincomputing.com>
This patch fixs the issue of g++.dg/torture/vshuf-v2di.C
and g++.dg/torture/vshuf-v4di.C -Os execution failure with
-march=rv32gcv -mabi=ilp32d.
Consider the following code:
typedef unsigned long long V __attribute__((vector_size(16)));
.LC0: 0xc1c2c3c4c5c6c7c8
before this patch:
lui a5,%hi(.LC0)
addi a5,a5,%lo(.LC0)
lw a6,4(a5)//0xc1c2c3c4
lw a5,0(a5)//0xc5c6c7c8
vsetivli zero,2,e64,m1,ta,mu
vmv.v.x v2,a5//v2 is {0xffffffffc5c6c7c8, 0xffffffffc5c6c7c8}
after this patch:
lui a5,%hi(.LC0)
addi a5,a5,%lo(.LC0)
vsetivli zero,2,e64,m1,ta,mu
vlse64.v v2,0(a5),zero//v2 is {0xc1c2c3c4c5c6c7c8, 0xc1c2c3c4c5c6c7c8}
gcc/ChangeLog:
* config/riscv/riscv-v.cc (sew64_scalar_helper): Bugfix.
---
gcc/config/riscv/riscv-v.cc | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc
index 588c127343e..2799a216a0b 100644
--- a/gcc/config/riscv/riscv-v.cc
+++ b/gcc/config/riscv/riscv-v.cc
@@ -1728,7 +1728,12 @@ sew64_scalar_helper (rtx *operands, rtx *scalar_op, rtx vl,
}
if (CONST_INT_P (*scalar_op))
- *scalar_op = force_reg (scalar_mode, *scalar_op);
+ {
+ if (maybe_gt (GET_MODE_SIZE (scalar_mode), GET_MODE_SIZE (Pmode)))
+ *scalar_op = force_const_mem (scalar_mode, *scalar_op);
+ else
+ *scalar_op = force_reg (scalar_mode, *scalar_op);
+ }
rtx tmp = gen_reg_rtx (vector_mode);
rtx ops[] = {tmp, *scalar_op};
--
2.17.1
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH v2] RISC-V: FAIL:g++.dg/torture/vshuf-v[2|4]di.C -Os (execution test) on RV32
2023-12-05 8:38 [PATCH v2] RISC-V: FAIL:g++.dg/torture/vshuf-v[2|4]di.C -Os (execution test) on RV32 Li Xu
@ 2023-12-05 8:41 ` juzhe.zhong
2023-12-05 8:45 ` Li Xu
0 siblings, 1 reply; 3+ messages in thread
From: juzhe.zhong @ 2023-12-05 8:41 UTC (permalink / raw)
To: Li Xu, gcc-patches; +Cc: kito.cheng, palmer, Li Xu
[-- Attachment #1: Type: text/plain, Size: 1781 bytes --]
LGTM. Thanks.
juzhe.zhong@rivai.ai
From: Li Xu
Date: 2023-12-05 16:38
To: gcc-patches
CC: kito.cheng; palmer; juzhe.zhong; xuli
Subject: [PATCH v2] RISC-V: FAIL:g++.dg/torture/vshuf-v[2|4]di.C -Os (execution test) on RV32
From: xuli <xuli1@eswincomputing.com>
This patch fixs the issue of g++.dg/torture/vshuf-v2di.C
and g++.dg/torture/vshuf-v4di.C -Os execution failure with
-march=rv32gcv -mabi=ilp32d.
Consider the following code:
typedef unsigned long long V __attribute__((vector_size(16)));
.LC0: 0xc1c2c3c4c5c6c7c8
before this patch:
lui a5,%hi(.LC0)
addi a5,a5,%lo(.LC0)
lw a6,4(a5)//0xc1c2c3c4
lw a5,0(a5)//0xc5c6c7c8
vsetivli zero,2,e64,m1,ta,mu
vmv.v.x v2,a5//v2 is {0xffffffffc5c6c7c8, 0xffffffffc5c6c7c8}
after this patch:
lui a5,%hi(.LC0)
addi a5,a5,%lo(.LC0)
vsetivli zero,2,e64,m1,ta,mu
vlse64.v v2,0(a5),zero//v2 is {0xc1c2c3c4c5c6c7c8, 0xc1c2c3c4c5c6c7c8}
gcc/ChangeLog:
* config/riscv/riscv-v.cc (sew64_scalar_helper): Bugfix.
---
gcc/config/riscv/riscv-v.cc | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc
index 588c127343e..2799a216a0b 100644
--- a/gcc/config/riscv/riscv-v.cc
+++ b/gcc/config/riscv/riscv-v.cc
@@ -1728,7 +1728,12 @@ sew64_scalar_helper (rtx *operands, rtx *scalar_op, rtx vl,
}
if (CONST_INT_P (*scalar_op))
- *scalar_op = force_reg (scalar_mode, *scalar_op);
+ {
+ if (maybe_gt (GET_MODE_SIZE (scalar_mode), GET_MODE_SIZE (Pmode)))
+ *scalar_op = force_const_mem (scalar_mode, *scalar_op);
+ else
+ *scalar_op = force_reg (scalar_mode, *scalar_op);
+ }
rtx tmp = gen_reg_rtx (vector_mode);
rtx ops[] = {tmp, *scalar_op};
--
2.17.1
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Re: [PATCH v2] RISC-V: FAIL:g++.dg/torture/vshuf-v[2|4]di.C -Os (execution test) on RV32
2023-12-05 8:41 ` juzhe.zhong
@ 2023-12-05 8:45 ` Li Xu
0 siblings, 0 replies; 3+ messages in thread
From: Li Xu @ 2023-12-05 8:45 UTC (permalink / raw)
To: juzhe.zhong, gcc-patches; +Cc: kito.cheng, palmer
[-- Attachment #1: Type: text/plain, Size: 2048 bytes --]
Committed, thanks juzhe.
xuli1@eswincomputing.com
From: juzhe.zhong@rivai.ai
Date: 2023-12-05 16:41
To: Li Xu; gcc-patches
CC: kito.cheng; palmer; Li Xu
Subject: Re: [PATCH v2] RISC-V: FAIL:g++.dg/torture/vshuf-v[2|4]di.C -Os (execution test) on RV32
LGTM. Thanks.
juzhe.zhong@rivai.ai
From: Li Xu
Date: 2023-12-05 16:38
To: gcc-patches
CC: kito.cheng; palmer; juzhe.zhong; xuli
Subject: [PATCH v2] RISC-V: FAIL:g++.dg/torture/vshuf-v[2|4]di.C -Os (execution test) on RV32
From: xuli <xuli1@eswincomputing.com>
This patch fixs the issue of g++.dg/torture/vshuf-v2di.C
and g++.dg/torture/vshuf-v4di.C -Os execution failure with
-march=rv32gcv -mabi=ilp32d.
Consider the following code:
typedef unsigned long long V __attribute__((vector_size(16)));
.LC0: 0xc1c2c3c4c5c6c7c8
before this patch:
lui a5,%hi(.LC0)
addi a5,a5,%lo(.LC0)
lw a6,4(a5)//0xc1c2c3c4
lw a5,0(a5)//0xc5c6c7c8
vsetivli zero,2,e64,m1,ta,mu
vmv.v.x v2,a5//v2 is {0xffffffffc5c6c7c8, 0xffffffffc5c6c7c8}
after this patch:
lui a5,%hi(.LC0)
addi a5,a5,%lo(.LC0)
vsetivli zero,2,e64,m1,ta,mu
vlse64.v v2,0(a5),zero//v2 is {0xc1c2c3c4c5c6c7c8, 0xc1c2c3c4c5c6c7c8}
gcc/ChangeLog:
* config/riscv/riscv-v.cc (sew64_scalar_helper): Bugfix.
---
gcc/config/riscv/riscv-v.cc | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc
index 588c127343e..2799a216a0b 100644
--- a/gcc/config/riscv/riscv-v.cc
+++ b/gcc/config/riscv/riscv-v.cc
@@ -1728,7 +1728,12 @@ sew64_scalar_helper (rtx *operands, rtx *scalar_op, rtx vl,
}
if (CONST_INT_P (*scalar_op))
- *scalar_op = force_reg (scalar_mode, *scalar_op);
+ {
+ if (maybe_gt (GET_MODE_SIZE (scalar_mode), GET_MODE_SIZE (Pmode)))
+ *scalar_op = force_const_mem (scalar_mode, *scalar_op);
+ else
+ *scalar_op = force_reg (scalar_mode, *scalar_op);
+ }
rtx tmp = gen_reg_rtx (vector_mode);
rtx ops[] = {tmp, *scalar_op};
--
2.17.1
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-12-05 8:38 [PATCH v2] RISC-V: FAIL:g++.dg/torture/vshuf-v[2|4]di.C -Os (execution test) on RV32 Li Xu
2023-12-05 8:41 ` juzhe.zhong
2023-12-05 8:45 ` Li Xu
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