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authorbstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4>2012-08-29 12:37:05 +0000
committerbstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4>2012-08-29 12:37:05 +0000
commit12cb78d1cca1387a092ec0bd49c250340bff4afc (patch)
tree1eab97da96906e0a2786d51d9f25f20de02befcf /gcc/config/avr/avr-modes.def
parent31879e18aea3222fe3e56f2c0319c9f230645ff3 (diff)
downloadgcc-12cb78d1cca1387a092ec0bd49c250340bff4afc.tar.gz
2012-08-29 Basile Starynkevitch <basile@starynkevitch.net>
MELT branch merged with trunk rev 190745 using svnmerge, notably C++ conversion. [gcc/] 2012-08-29 Basile Starynkevitch <basile@starynkevitch.net> {{merging with trunk, converted to C++}} * melt-runtime.h (MELT_FLEXIBLE_DIM): Set when C++. * melt-runtime.c (melt_tempdir_path): Don't use choose_tmpdir from libiberty. (meltgc_start_module_by_index): Use address-of & on VEC_index. (melt_really_initialize): When printing builtin settings, handle GCC 4.8 as with implicit ENABLE_BUILD_WITH_CXX. (meltgc_out_edge): Provide additional flag TDF_DETAILS for dump_edge_info. (melt_val2passflag): Handle PROP_referenced_vars only when defined. * melt-module.mk: Use GCCMELT_COMPILER instead of GCCMELT_CC. * melt-build-script.tpl: Transmit GCCMELT_COMPILER on every make using melt-module.mk and improve the error message. * melt-build-script.sh: Regenerate. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@190778 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/avr/avr-modes.def')
-rw-r--r--gcc/config/avr/avr-modes.def27
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/config/avr/avr-modes.def b/gcc/config/avr/avr-modes.def
index 4a16f888ddf..09e6b4983f0 100644
--- a/gcc/config/avr/avr-modes.def
+++ b/gcc/config/avr/avr-modes.def
@@ -1 +1,28 @@
FRACTIONAL_INT_MODE (PSI, 24, 3);
+
+/* On 8 bit machines it requires fewer instructions for fixed point
+ routines if the decimal place is on a byte boundary which is not
+ the default for signed accum types. */
+
+ADJUST_IBIT (HA, 7);
+ADJUST_FBIT (HA, 8);
+
+ADJUST_IBIT (SA, 15);
+ADJUST_FBIT (SA, 16);
+
+ADJUST_IBIT (DA, 31);
+ADJUST_FBIT (DA, 32);
+
+/* Make TA and UTA 64 bits wide.
+ 128 bit wide modes would be insane on a 8-bit machine.
+ This needs special treatment in avr.c and avr-lib.h. */
+
+ADJUST_BYTESIZE (TA, 8);
+ADJUST_ALIGNMENT (TA, 1);
+ADJUST_IBIT (TA, 15);
+ADJUST_FBIT (TA, 48);
+
+ADJUST_BYTESIZE (UTA, 8);
+ADJUST_ALIGNMENT (UTA, 1);
+ADJUST_IBIT (UTA, 16);
+ADJUST_FBIT (UTA, 48);