https://gcc.gnu.org/g:f145f5411609dca5493a6709e8139609b584622f
commit r15-2335-gf145f5411609dca5493a6709e8139609b584622f
Author: Haochen Jiang <haochen.ji...@intel.com>
Date: Fri Jul 26 16:49:08 2024 +0800
i386: Use BLKmode for {ld,st}tilecfg
Hi all,
For AMX instructions related with memory, we will treat the memory
size as not specified since there won't be different size causing
confusion for memory.
This will change the output under Intel mode, which is broken for now when
using with assembler and aligns to current binutils behavior.
Bootstrapped and regtested on x86-64-pc-linux-gnu. Ok for trunk?
Thx,
Haochen
gcc/ChangeLog:
* config/i386/i386-expand.cc (ix86_expand_builtin): Change
from XImode to BLKmode.
* config/i386/i386.md (ldtilecfg): Change XI to BLK.
(sttilecfg): Ditto.
Diff:
---
gcc/config/i386/i386-expand.cc | 2 +-
gcc/config/i386/i386.md | 12 +++++-------
2 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
index 9a31e6df2aa2..d9ad06264aaf 100644
--- a/gcc/config/i386/i386-expand.cc
+++ b/gcc/config/i386/i386-expand.cc
@@ -14198,7 +14198,7 @@ ix86_expand_builtin (tree exp, rtx target, rtx
subtarget,
op0 = convert_memory_address (Pmode, op0);
op0 = copy_addr_to_reg (op0);
}
- op0 = gen_rtx_MEM (XImode, op0);
+ op0 = gen_rtx_MEM (BLKmode, op0);
if (fcode == IX86_BUILTIN_LDTILECFG)
icode = CODE_FOR_ldtilecfg;
else
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 6207036a2a01..fb10fdc9f96d 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -29032,24 +29032,22 @@
(set_attr "type" "other")])
(define_insn "ldtilecfg"
- [(unspec_volatile [(match_operand:XI 0 "memory_operand" "m")]
+ [(unspec_volatile [(match_operand:BLK 0 "memory_operand" "m")]
UNSPECV_LDTILECFG)]
"TARGET_AMX_TILE"
"ldtilecfg\t%0"
[(set_attr "type" "other")
(set_attr "prefix" "maybe_evex")
- (set_attr "memory" "load")
- (set_attr "mode" "XI")])
+ (set_attr "memory" "load")])
(define_insn "sttilecfg"
- [(set (match_operand:XI 0 "memory_operand" "=m")
- (unspec_volatile:XI [(const_int 0)] UNSPECV_STTILECFG))]
+ [(set (match_operand:BLK 0 "memory_operand" "=m")
+ (unspec_volatile:BLK [(const_int 0)] UNSPECV_STTILECFG))]
"TARGET_AMX_TILE"
"sttilecfg\t%0"
[(set_attr "type" "other")
(set_attr "prefix" "maybe_evex")
- (set_attr "memory" "store")
- (set_attr "mode" "XI")])
+ (set_attr "memory" "store")])
(include "mmx.md")
(include "sse.md")
