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msvc/icl: Intel Compiler support on Windows

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Initial support for the ICL compiler on windows. Requires a new
c99wrap with ICL support (1.0.2+).

Currently not much different speed wise compared to msvc. In the
future with a few changes it can be made to support the inline asm.
This would be the primary reason for using it.

Passed all fate tests, versions tested:
    13.1.1.171 (2013 Update 3) x86 and x64
    12.1.5.344 (2011 Update 11) x86 and x64

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Alex Smith 2013-05-25 06:07:42 -04:00 committed by Luca Barbato
parent 9495cd170b
commit 322e4194dd
1 changed files with 39 additions and 0 deletions
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39
configure vendored
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@ -2227,6 +2227,13 @@ case "$toolchain" in
ar_default="lib"
target_os_default="win32"
;;
icl)
cc_default="c99wrap -noconv icl"
ld_default="c99wrap xilink"
nm_default="dumpbin -symbols"
ar_default="xilib"
target_os_default="win32"
;;
gcov)
add_cflags -fprofile-arcs -ftest-coverage
add_ldflags -fprofile-arcs -ftest-coverage
@ -2554,6 +2561,31 @@ probe_cc(){
if [ $pfx = hostcc ]; then
append _cflags -Dsnprintf=_snprintf
fi
elif $_cc 2>&1 | grep -q Intel; then
_type=icl
_ident=$($cc 2>&1 | head -n1)
_depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
# Not only is O3 broken on 13.x+ but it's slower on all previous versions (tested) as well
_cflags_speed="-O2"
_cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
# Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
if $_cc 2>&1 | grep -q Linker; then
_ld_o='-out $@'
else
_ld_o='-Fe$@'
fi
_cc_o='-Fo $@'
_cc_e='-P'
_flags_filter=msvc_flags
_ld_lib='lib%.a'
_ld_path='-libpath:'
# -Qdiag-error to make icl error when presented with certain unknown arguments
_flags='-nologo -Qdiag-error:10157 -Qdiag-error:4044'
# -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency with msvc which enables it by default
_cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64 -Qstd=c99 -Qms0 -Qvec- -Qsimd- -GS'
if [ $pfx = hostcc ]; then
append _cflags -Dsnprintf=_snprintf
fi
fi
eval ${pfx}_type=\$_type
@ -3868,6 +3900,13 @@ elif enabled pathscale; then
add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
elif enabled msvc; then
enabled x86_32 && disable aligned_stack
elif enabled icl; then
enabled x86_32 && disable aligned_stack
check_cflags -W1 # Just warnings, no remark spam
# basically -fstrict-aliasing for icl that doesn't work (correctly) on 13.x+
check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
# icl will pass the inline asm tests but inline asm is currently not supported (build will fail)
disable inline_asm
fi
case $target_os in