1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
From 805a7aec3ddab49b92bf2d5c1a3e288860cc14bf Mon Sep 17 00:00:00 2001
From: Richard Sandiford <richard.sandiford@arm.com>
Date: Thu, 20 Oct 2022 10:37:35 +0100
Subject: [PATCH 030/157] [Backport][SME] aarch64: Commonise some folding code
Reference: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=df99e9e42094dee0833ac38f53e7fae09b4d133c
Add an aarch64_sve::gimple_folder helper for folding calls
to integer constants. SME will make more use of this.
gcc/
* config/aarch64/aarch64-sve-builtins.h
(gimple_folder::fold_to_cstu): New member function.
* config/aarch64/aarch64-sve-builtins.cc
(gimple_folder::fold_to_cstu): Define.
* config/aarch64/aarch64-sve-builtins-base.cc
(svcnt_bhwd_impl::fold): Use it.
---
gcc/config/aarch64/aarch64-sve-builtins-base.cc | 9 ++-------
gcc/config/aarch64/aarch64-sve-builtins.cc | 7 +++++++
gcc/config/aarch64/aarch64-sve-builtins.h | 1 +
3 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/gcc/config/aarch64/aarch64-sve-builtins-base.cc b/gcc/config/aarch64/aarch64-sve-builtins-base.cc
index c24c05487..56c9d75e7 100644
--- a/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+++ b/gcc/config/aarch64/aarch64-sve-builtins-base.cc
@@ -516,9 +516,7 @@ public:
gimple *
fold (gimple_folder &f) const OVERRIDE
{
- tree count = build_int_cstu (TREE_TYPE (f.lhs),
- GET_MODE_NUNITS (m_ref_mode));
- return gimple_build_assign (f.lhs, count);
+ return f.fold_to_cstu (GET_MODE_NUNITS (m_ref_mode));
}
rtx
@@ -553,10 +551,7 @@ public:
unsigned int elements_per_vq = 128 / GET_MODE_UNIT_BITSIZE (m_ref_mode);
HOST_WIDE_INT value = aarch64_fold_sve_cnt_pat (pattern, elements_per_vq);
if (value >= 0)
- {
- tree count = build_int_cstu (TREE_TYPE (f.lhs), value);
- return gimple_build_assign (f.lhs, count);
- }
+ return f.fold_to_cstu (value);
return NULL;
}
diff --git a/gcc/config/aarch64/aarch64-sve-builtins.cc b/gcc/config/aarch64/aarch64-sve-builtins.cc
index a70e3a6b4..e168c8334 100644
--- a/gcc/config/aarch64/aarch64-sve-builtins.cc
+++ b/gcc/config/aarch64/aarch64-sve-builtins.cc
@@ -2615,6 +2615,13 @@ gimple_folder::redirect_call (const function_instance &instance)
return call;
}
+/* Fold the call to constant VAL. */
+gimple *
+gimple_folder::fold_to_cstu (poly_uint64 val)
+{
+ return gimple_build_assign (lhs, build_int_cstu (TREE_TYPE (lhs), val));
+}
+
/* Fold the call to a PTRUE, taking the element size from type suffix 0. */
gimple *
gimple_folder::fold_to_ptrue ()
diff --git a/gcc/config/aarch64/aarch64-sve-builtins.h b/gcc/config/aarch64/aarch64-sve-builtins.h
index 63d1db776..0d130b871 100644
--- a/gcc/config/aarch64/aarch64-sve-builtins.h
+++ b/gcc/config/aarch64/aarch64-sve-builtins.h
@@ -500,6 +500,7 @@ public:
tree load_store_cookie (tree);
gimple *redirect_call (const function_instance &);
+ gimple *fold_to_cstu (poly_uint64);
gimple *fold_to_pfalse ();
gimple *fold_to_ptrue ();
gimple *fold_to_vl_pred (unsigned int);
--
2.33.0
|
