From: Przemyslaw Wirkus <Przemyslaw.Wirkus@arm.com>
To: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Cc: Richard Earnshaw <Richard.Earnshaw@arm.com>,
Kyrylo Tkachov <Kyrylo.Tkachov@arm.com>,
Richard Sandiford <Richard.Sandiford@arm.com>,
Marcus Shawcroft <Marcus.Shawcroft@arm.com>
Subject: [PATCH][GCC] aarch64: Add new vector mode V8DI
Date: Wed, 10 Nov 2021 11:28:03 +0000 [thread overview]
Message-ID: <PAXPR08MB66216E7D545121E55AC4DBC1E4939@PAXPR08MB6621.eurprd08.prod.outlook.com> (raw)
Hi,
This patch is adding new V8DI mode which will be used with new Armv8.7-A
LS64 extension intrinsics.
Regtested on aarch64-elf and no issues.
OK for master?
gcc/ChangeLog:
2021-11-10 Przemyslaw Wirkus <przemyslaw.wirkus@arm.com>
* config/aarch64/aarch64-modes.def (VECTOR_MODE): New V8DI mode.
* config/aarch64/aarch64.c (aarch64_hard_regno_mode_ok): Handle
V8DImode.
* config/aarch64/iterators.md (define_mode_attr nunits): Add entry
for V8DI.
Kind regards,
Przemyslaw Wirkus
---
diff --git a/gcc/config/aarch64/aarch64-modes.def b/gcc/config/aarch64/aarch64-modes.def
index ac97d222789c6701d858c014736f8c211512a4d9..62595b8af6e1eea8fc769885bba9fe54f0a9ec05 100644
--- a/gcc/config/aarch64/aarch64-modes.def
+++ b/gcc/config/aarch64/aarch64-modes.def
@@ -81,6 +81,11 @@ INT_MODE (OI, 32);
INT_MODE (CI, 48);
INT_MODE (XI, 64);
+/* V8DI mode. */
+VECTOR_MODE_WITH_PREFIX (V, INT, DI, 8, 5); \
+ \
+ ADJUST_ALIGNMENT (V8DI, 8);
+
/* Define Advanced SIMD modes for structures of 2, 3 and 4 d-registers. */
#define ADV_SIMD_D_REG_STRUCT_MODES(NVECS, VB, VH, VS, VD) \
VECTOR_MODES_WITH_PREFIX (V##NVECS##x, INT, 8, 3); \
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 69f08052ce808c140ed2933ab6b2e2617ca6f669..0e102a83a8dc34e715fafb58169897b12c9b3a20 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -3376,6 +3376,9 @@ aarch64_hard_regno_nregs (unsigned regno, machine_mode mode)
static bool
aarch64_hard_regno_mode_ok (unsigned regno, machine_mode mode)
{
+ if (mode == V8DImode)
+ return IN_RANGE (regno, R0_REGNUM, R23_REGNUM);
+
if (GET_MODE_CLASS (mode) == MODE_CC)
return regno == CC_REGNUM;
diff --git a/gcc/config/aarch64/iterators.md b/gcc/config/aarch64/iterators.md
index bdc8ba3576cf2c9b4ae96b45a382234e4e25b13f..cea277f3a03cfd20178e51e6abd7e256e206299f 100644
--- a/gcc/config/aarch64/iterators.md
+++ b/gcc/config/aarch64/iterators.md
@@ -1053,7 +1053,7 @@ (define_mode_attr vas [(DI "") (SI ".2s")])
(define_mode_attr nunits [(V8QI "8") (V16QI "16")
(V4HI "4") (V8HI "8")
(V2SI "2") (V4SI "4")
- (V2DI "2")
+ (V2DI "2") (V8DI "8")
(V4HF "4") (V8HF "8")
(V4BF "4") (V8BF "8")
(V2SF "2") (V4SF "4")
next reply other threads:[~2021-11-10 11:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-10 11:28 Przemyslaw Wirkus [this message]
2021-11-17 10:07 ` Richard Sandiford
2021-11-17 14:02 ` Przemyslaw Wirkus
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