Add HVX support to the semantics generator
Acked-by: Richard Henderson <richard.hender...@linaro.org>
Signed-off-by: Taylor Simpson <tsimp...@quicinc.com>
---
target/hexagon/gen_semantics.c | 33 +++++++++++++++++++++++++++++++++
target/hexagon/hex_common.py | 13 +++++++++++++
2 files changed, 46 insertions(+)
diff --git a/target/hexagon/gen_semantics.c b/target/hexagon/gen_semantics.c
index c5fccec..4a2bdd7 100644
--- a/target/hexagon/gen_semantics.c
+++ b/target/hexagon/gen_semantics.c
@@ -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
@@ -83,6 +103,19 @@ int main(int argc, char *argv[])
#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);
return 0;
}
diff --git a/target/hexagon/hex_common.py b/target/hexagon/hex_common.py
index b3b5340..47fb628 100755
--- a/target/hexagon/hex_common.py
+++ b/target/hexagon/hex_common.py
@@ -143,6 +143,9 @@ 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
@@ -178,6 +181,9 @@ 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]
@@ -201,6 +207,13 @@ 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
--
2.7.4
