Could you show me the ICE message ?
Is it in front-end ? If yes, it's ok.
I wonder whether it is "internal compiler error".
juzhe.zh...@rivai.ai
From: Li Xu
Date: 2024-01-19 16:04
To: juzhe.zhong; gcc-patches
CC: kito.cheng; palmer; zhengyu; pan2.li
Subject: Re: Re: [PATCH] RISC-V: Bugfix for resolve_overloaded_builtin[PR113420]
you are right.
vint8mf8_t test_vle8_v_i8mf8_m(vbool64_t vm, const int32_t *rs1, size_t vl) {
return __riscv_vle8(vm, rs1, vl);
}
This will cause ICE. I tried clang and it will also cause ICE.
xu...@eswincomputing.com
From: juzhe.zh...@rivai.ai
Date: 2024-01-19 15:53
To: Li Xu; gcc-patches
CC: kito.cheng; palmer; zhengyu; pan2.li; Li Xu
Subject: Re: [PATCH] RISC-V: Bugfix for resolve_overloaded_builtin[PR113420]
Could you add a test for vle with mask?
For example:
__riscv_vle8 which overload __riscv_vle8_v_i8mf8_m and __riscv_vle8_v_u8mf8_m
You are using pointer type and mask type to resolve it.
So this pointer type is expecting const int8_t or const uint8_t.
Could you add test:
1.__riscv_vle8 (const int8_t *...)
2. __riscv_vle8 (const uint8_t *...)
3. __riscv_vle8 (const int32_t *...) ---> I worry this will cause ICE since
pointer type doesn't match the expecting type,
I wonder whether it will cause ICE while resolving API.
Thanks.
juzhe.zh...@rivai.ai
From: Li Xu
Date: 2024-01-19 15:44
To: gcc-patches
CC: kito.cheng; palmer; juzhe.zhong; zhengyu; pan2.li; xuli
Subject: [PATCH] RISC-V: Bugfix for resolve_overloaded_builtin[PR113420]
From: xuli <xu...@eswincomputing.com>
Change the hash value of overloaded intrinsic from considering
all parameter types to:
1. Encoding vector data type
2. In order to distinguish vle8_v_i8mf8_m(vbool64_t vm, const int8_t *rs1,
size_t vl)
and vle8_v_u8mf8_m(vbool64_t vm, const uint8_t *rs1, size_t vl), encode the
pointer type
3. In order to distinguish vfadd_vv_f32mf2_rm(vfloat32mf2_t vs2, vfloat32mf2_t
vs1, size_t vl)
and vfadd_vv_f32mf2(vfloat32mf2_t vs2, vfloat32mf2_t vs1, size_t vl), encode
the number of
parameters. The same goes for the vxrm intrinsics.
PR target/113420
gcc/ChangeLog:
* config/riscv/riscv-vector-builtins.cc (has_vxrm_or_frm_p): remove.
(registered_function::overloaded_hash): refactor.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/pr113420.c: New test.
---
gcc/config/riscv/riscv-vector-builtins.cc | 88 +++----------------
.../gcc.target/riscv/rvv/base/pr113420.c | 30 +++++++
2 files changed, 43 insertions(+), 75 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/riscv/rvv/base/pr113420.c
diff --git a/gcc/config/riscv/riscv-vector-builtins.cc
b/gcc/config/riscv/riscv-vector-builtins.cc
index 25e0b6e56de..5240f9e1f02 100644
--- a/gcc/config/riscv/riscv-vector-builtins.cc
+++ b/gcc/config/riscv/riscv-vector-builtins.cc
@@ -4271,24 +4271,22 @@ registered_function::overloaded_hash () const
: TYPE_UNSIGNED (type);
mode_p = POINTER_TYPE_P (type) ? TYPE_MODE (TREE_TYPE (type))
: TYPE_MODE (type);
- h.add_int (unsigned_p);
- h.add_int (mode_p);
+ if (POINTER_TYPE_P (type) || lookup_vector_type_attribute (type))
+ {
+ h.add_int (unsigned_p);
+ h.add_int (mode_p);
+ }
+ else if (instance.base->may_require_vxrm_p ()
+ || instance.base->may_require_frm_p ())
+ {
+ h.add_int (argument_types.length ());
+ break;
+ }
}
return h.end ();
}
-bool
-has_vxrm_or_frm_p (function_instance &instance, const vec<tree, va_gc>
&arglist)
-{
- if (instance.base->may_require_vxrm_p ()
- || (instance.base->may_require_frm_p ()
- && (TREE_CODE (TREE_TYPE (arglist[arglist.length () - 2]))
- == INTEGER_TYPE)))
- return true;
- return false;
-}
-
hashval_t
registered_function::overloaded_hash (const vec<tree, va_gc> &arglist)
{
@@ -4296,68 +4294,8 @@ registered_function::overloaded_hash (const vec<tree,
va_gc> &arglist)
unsigned int len = arglist.length ();
for (unsigned int i = 0; i < len; i++)
- {
- /* vint8m1_t __riscv_vget_i8m1(vint8m2_t src, size_t index);
- When the user calls vget intrinsic, the __riscv_vget_i8m1(src, 1)
- form is used. The compiler recognizes that the parameter index is signed
- int, which is inconsistent with size_t, so the index is converted to
- size_t type in order to get correct hash value. vint8m2_t
- __riscv_vset(vint8m2_t dest, size_t index, vint8m1_t value); The reason
- is the same as above. */
- if ((instance.base == bases::vget && (i == (len - 1)))
- || ((instance.base == bases::vset
- || instance.shape == shapes::crypto_vi)
- && (i == (len - 2))))
- argument_types.safe_push (size_type_node);
- /* Vector fixed-point arithmetic instructions requiring argument vxrm.
- For example: vuint32m4_t __riscv_vaaddu(vuint32m4_t vs2,
- vuint32m4_t vs1, unsigned int vxrm, size_t vl); The user calls vaaddu
- intrinsic in the form of __riscv_vaaddu(vs2, vs1, 2, vl). The compiler
- recognizes that the parameter vxrm is a signed int, which is inconsistent
- with the parameter unsigned int vxrm declared by intrinsic, so the
- parameter vxrm is converted to an unsigned int type in order to get
- correct hash value.
-
- Vector Floating-Point Instructions requiring argument frm.
- DEF_RVV_FUNCTION (vfadd, alu, full_preds, f_vvv_ops)
- DEF_RVV_FUNCTION (vfadd_frm, alu_frm, full_preds, f_vvv_ops)
- Taking vfadd as an example, theoretically we can add base or shape to the
- hash value to distinguish whether the frm parameter is required.
- vfloat32m1_t __riscv_vfadd(vfloat32m1_t vs2, float32_t rs1, size_t vl);
- vfloat32m1_t __riscv_vfadd(vfloat32m1_t vs2, vfloat32m1_t vs1, unsigned
int
- frm, size_t vl);
-
- However, the current registration mechanism of overloaded intinsic for gcc
- limits the intrinsic obtained by entering the hook to always be vfadd,
not
- vfadd_frm. Therefore, the correct hash value cannot be obtained through
the
- parameter list and overload name, base or shape.
- +--------+---------------------------+-------------------+
- | index | name | kind |
- +--------+---------------------------+-------------------+
- | 124733 | __riscv_vfadd | Overloaded | <- Hook fun
code
- +--------+---------------------------+-------------------+
- | 124735 | __riscv_vfadd_vv_f32m1 | Non-overloaded |
- +--------+---------------------------+-------------------+
- | 124737 | __riscv_vfadd | Placeholder |
- +--------+---------------------------+-------------------+
- | ... |
- +--------+---------------------------+-------------------+
- | ... |
- +--------+---------------------------+-------------------+
- | 125739 | __riscv_vfadd | Overloaded |
- +--------+---------------------------+-------------------+
- | 125741 | __riscv_vfadd_vv_f32m1_rm | Non-overloaded |
- +--------+---------------------------+-------------------+
- | 125743 | __riscv_vfadd | Placeholder |
- +--------+---------------------------+-------------------+
-
- Therefore, the hash value cannot be added with base or shape, and needs
- to be distinguished by whether the penultimate parameter is
INTEGER_TYPE. */
- else if (has_vxrm_or_frm_p (instance, arglist) && (i == (len - 2)))
- argument_types.safe_push (unsigned_type_node);
- else
- argument_types.safe_push (TREE_TYPE (arglist[i]));
- }
+ argument_types.safe_push (TREE_TYPE (arglist[i]));
+
return overloaded_hash ();
}
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/base/pr113420.c
b/gcc/testsuite/gcc.target/riscv/rvv/base/pr113420.c
new file mode 100644
index 00000000000..d17f22804ff
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/base/pr113420.c
@@ -0,0 +1,30 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3" } */
+
+#include "riscv_vector.h"
+
+void
+matrix_transpose_intrinsics (float *dst, float *src, size_t n)
+{
+ for (size_t row_id = 0; row_id < n; ++row_id)
+ { // input row-index
+ size_t avl = n;
+ // source pointer to row_id-th row
+ float *row_src = src + row_id * n;
+ // destination pointer to row_id-th column
+ float *row_dst = dst + row_id;
+ while (avl > 0)
+ {
+ size_t vl = __riscv_vsetvl_e32m1 (avl);
+ vfloat32m1_t row = __riscv_vle32_v_f32m1 (row_src, vl);
+ __riscv_vsse32 (row_dst, sizeof (float) * n, row, vl);
+ // updating application vector length
+ avl -= vl;
+ // updating source and destination pointers
+ row_src += vl;
+ row_dst += vl * n;
+ }
+ }
+}
+
+/* { dg-final { scan-assembler-times {vsse32\.v} 1 } } */
--
2.17.1
