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Hexagon HVX (target/hexagon) semantics generator 

Add HVX support to the semantics generator

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
This commit is contained in:
Taylor Simpson 2021-05-18 16:45:18 -05:00
parent e3d143e98e
commit 144da35776
2 changed files with 46 additions and 0 deletions
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33
target/hexagon/gen_semantics.c
View File

@ -44,6 +44,11 @@ int main(int argc, char *argv[])
* Q6INSN(A2_add,"Rd32=add(Rs32,Rt32)",ATTRIBS(),
* "Add 32-bit registers",
* { RdV=RsV+RtV;})
* HVX instructions have the following form
* EXTINSN(V6_vinsertwr, "Vx32.w=vinsert(Rt32)",
* ATTRIBS(A_EXTENSION,A_CVI,A_CVI_VX),
* "Insert Word Scalar into Vector",
* VxV.uw[0] = RtV;)
*/
#define Q6INSN(TAG, BEH, ATTRIBS, DESCR, SEM) \
do { \
@ -59,8 +64,23 @@ int main(int argc, char *argv[])
")\n", \
#TAG, STRINGIZE(ATTRIBS)); \
} while (0);
#define EXTINSN(TAG, BEH, ATTRIBS, DESCR, SEM) \
do { \
fprintf(outfile, "SEMANTICS( \\\n" \
" \"%s\", \\\n" \
" %s, \\\n" \
" \"\"\"%s\"\"\" \\\n" \
")\n", \
#TAG, STRINGIZE(BEH), STRINGIZE(SEM)); \
fprintf(outfile, "ATTRIBUTES( \\\n" \
" \"%s\", \\\n" \
" \"%s\" \\\n" \
")\n", \
#TAG, STRINGIZE(ATTRIBS)); \
} while (0);
#include "imported/allidefs.def"
#undef Q6INSN
#undef EXTINSN
/*
* Process the macro definitions
@ -81,6 +101,19 @@ int main(int argc, char *argv[])
")\n", \
#MNAME, STRINGIZE(BEH), STRINGIZE(ATTRS));
#include "imported/macros.def"
#undef DEF_MACRO
/*
* Process the macros for HVX
*/
#define DEF_MACRO(MNAME, BEH, ATTRS) \
fprintf(outfile, "MACROATTRIB( \\\n" \
" \"%s\", \\\n" \
" \"\"\"%s\"\"\", \\\n" \
" \"%s\" \\\n" \
")\n", \
#MNAME, STRINGIZE(BEH), STRINGIZE(ATTRS));
#include "imported/allext_macros.def"
#undef DEF_MACRO
fclose(outfile);

13
target/hexagon/hex_common.py
View File

@ -145,6 +145,9 @@ def compute_tag_immediates(tag):
## P predicate register
## R GPR register
## M modifier register
## Q HVX predicate vector
## V HVX vector register
## O HVX new vector register
## regid can be one of the following
## d, e destination register
## dd destination register pair
@ -180,6 +183,9 @@ def is_readwrite(regid):
def is_scalar_reg(regtype):
return regtype in "RPC"
def is_hvx_reg(regtype):
return regtype in "VQ"
def is_old_val(regtype, regid, tag):
return regtype+regid+'V' in semdict[tag]
@ -203,6 +209,13 @@ def need_ea(tag):
def skip_qemu_helper(tag):
return tag in overrides.keys()
def is_tmp_result(tag):
return ('A_CVI_TMP' in attribdict[tag] or
'A_CVI_TMP_DST' in attribdict[tag])
def is_new_result(tag):
return ('A_CVI_NEW' in attribdict[tag])
def imm_name(immlett):
return "%siV" % immlett