mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-02-26 02:15:32 +08:00
Code Issues Packages Projects Releases Wiki Activity

Explicitly add -msse2 to compile HF related libgcc source file.

Browse Source 
For 32-bit libgcc configure w/o sse2, there's would be an error since
GCC only support _Float16 under sse2. Explicitly add -msse2 for those
HF related libgcc functions, so users can still link them w/ the
upper configuration.

libgcc/ChangeLog:

	* Makefile.in: Adjust to support specific CFLAGS for each
	libgcc source file.
	* config/i386/64/t-softfp: Explicitly add -msse2 for HF
	related libgcc source files.
	* config/i386/t-softfp: Ditto.
	* config/i386/_divhc3.c: New file.
	* config/i386/_mulhc3.c: New file.
This commit is contained in:
liuhongt 2021-09-03 13:06:57 +08:00
parent a3fb781d4b
commit 637dfcf43c
5 changed files with 35 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libgcc/Makefile.in
View File

@ -314,7 +314,7 @@ MULTIOSSUBDIR := $(shell if test $(MULTIOSDIR) != .; then echo /$(MULTIOSDIR); f
inst_libdir = $(libsubdir)$(MULTISUBDIR)
inst_slibdir = $(slibdir)$(MULTIOSSUBDIR)
gcc_compile_bare = $(CC) $(INTERNAL_CFLAGS)
gcc_compile_bare = $(CC) $(INTERNAL_CFLAGS) $(CFLAGS-$(<F))
compile_deps = -MT $@ -MD -MP -MF $(basename $@).dep
gcc_compile = $(gcc_compile_bare) -o $@ $(compile_deps)
gcc_s_compile = $(gcc_compile) -DSHARED

5
libgcc/config/i386/64/t-softfp
View File

@ -1 +1,6 @@
softfp_extras := fixhfti fixunshfti floattihf floatuntihf
CFLAGS-fixhfti.c += -msse2
CFLAGS-fixunshfti.c += -msse2
CFLAGS-floattihf.c += -msse2
CFLAGS-floatunstihf.c += -msse2

4
libgcc/config/i386/_divhc3.c Normal file
View File

@ -0,0 +1,4 @@
#ifdef __SSE2__
#define L_divhc3
#include "libgcc2.c"
#endif

4
libgcc/config/i386/_mulhc3.c Normal file
View File

@ -0,0 +1,4 @@
#ifdef __SSE2__
#define L_mulhc3
#include "libgcc2.c"
#endif

22
libgcc/config/i386/t-softfp
View File

@ -1,6 +1,26 @@
LIB2ADD += $(srcdir)/config/i386/sfp-exceptions.c
# Replace _divhc3 and _mulhc3.
libgcc2-hf-functions = _divhc3 _mulhc3
LIB2FUNCS_EXCLUDE += $(libgcc2-hf-functions)
libgcc2-hf-extras = $(addsuffix .c, $(libgcc2-hf-functions))
LIB2ADD_ST += $(addprefix $(srcdir)/config/i386/, $(libgcc2-hf-extras))
softfp_extensions := hfsf hfdf hftf hfxf sfdf sftf dftf xftf
softfp_truncations := tfhf xfhf dfhf sfhf tfsf dfsf tfdf tfxf
softfp_extras += eqhf2
softfp_extras += eqhf2
CFLAGS-extendhfsf2.c += -msse2
CFLAGS-extendhfdf2.c += -msse2
CFLAGS-extendhftf2.c += -msse2
CFLAGS-extendhfxf2.c += -msse2
CFLAGS-truncsfhf2.c += -msse2
CFLAGS-truncdfhf2.c += -msse2
CFLAGS-truncxfhf2.c += -msse2
CFLAGS-trunctfhf2.c += -msse2
CFLAGS-eqhf2.c += -msse2
CFLAGS-_divhc3.c += -msse2
CFLAGS-_mulhc3.c += -msse2