The compact casesi option only make sens for ARCv1 cores. For ARCv2 cores we
use the regular expansion.
OK to apply?
Claudiu
gcc/
2016-04-26 Claudiu Zissulescu <claz...@synopsys.com>
* common/config/arc/arc-common.c (arc_option_optimization_table):
Disable compact casesi as default option.
* config/arc/arc.c (arc_override_options): Enable compact casesi
option for non-ARCv2 cores.
* config/arc/arc.md (movsi_insn): Use @pcl relocation.
(movsi_ne): Update assembly printing pattern.
(casesi_load): Use short ld instruction.
---
gcc/common/config/arc/arc-common.c | 1 -
gcc/config/arc/arc.c | 7 +++++++
gcc/config/arc/arc.md | 11 +++++++----
3 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/gcc/common/config/arc/arc-common.c
b/gcc/common/config/arc/arc-common.c
index 64fb053..17cc1bd 100644
--- a/gcc/common/config/arc/arc-common.c
+++ b/gcc/common/config/arc/arc-common.c
@@ -56,7 +56,6 @@ static const struct default_options
arc_option_optimization_table[] =
{ OPT_LEVELS_ALL, OPT_mbbit_peephole, NULL, 1 },
{ OPT_LEVELS_SIZE, OPT_mq_class, NULL, 1 },
{ OPT_LEVELS_SIZE, OPT_mcase_vector_pcrel, NULL, 1 },
- { OPT_LEVELS_SIZE, OPT_mcompact_casesi, NULL, 1 },
{ OPT_LEVELS_NONE, 0, NULL, 0 }
};
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
index 6f2136e..be55c99 100644
--- a/gcc/config/arc/arc.c
+++ b/gcc/config/arc/arc.c
@@ -812,6 +812,13 @@ arc_override_options (void)
if (arc_size_opt_level == 3)
optimize_size = 1;
+ /* Compact casesi is not a valid option for ARCv2 family, disable
+ it. */
+ if (TARGET_V2)
+ TARGET_COMPACT_CASESI = 0;
+ else if (optimize_size == 1)
+ TARGET_COMPACT_CASESI = 1;
+
if (flag_pic)
target_flags |= MASK_NO_SDATA_SET;
diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md
index 718443b..aec4b37 100644
--- a/gcc/config/arc/arc.md
+++ b/gcc/config/arc/arc.md
@@ -713,7 +713,7 @@
ror %0,((%1*2+1) & 0x3f) ;6
mov%? %0,%1 ;7
add %0,%S1 ;8
- * return arc_get_unalign () ? \"add %0,pcl,%1-.+2\" : \"add %0,pcl,%1-.\";
+ add %0,pcl,%1@pcl
mov%? %0,%S1%& ;10
mov%? %0,%S1 ;11
ld%?%U1 %0,%1%& ;12
@@ -3467,8 +3467,8 @@
""
"@
* current_insn_predicate = 0; return \"sub%?.ne %0,%0,%0%&\";
- mov_s.ne %0,%1
- mov_s.ne %0,%1
+ * current_insn_predicate = 0; return \"mov%?.ne %0,%1\";
+ * current_insn_predicate = 0; return \"mov%?.ne %0,%1\";
mov.ne %0,%1
mov.ne %0,%S1"
[(set_attr "type" "cmove")
@@ -3777,7 +3777,10 @@
switch (GET_MODE (diff_vec))
{
case SImode:
- return \"ld.as %0,[%1,%2]%&\";
+ if ((which_alternative == 0) && TARGET_CODE_DENSITY)
+ return \"ld_s.as %0,[%1,%2]%&\";
+ else
+ return \"ld.as %0,[%1,%2]%&\";
case HImode:
if (ADDR_DIFF_VEC_FLAGS (diff_vec).offset_unsigned)
return \"ld%_.as %0,[%1,%2]\";
--
1.9.1
