https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107860
Bug ID: 107860
Summary: Compilation failure, ambiguous fisttp
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: simon at pushface dot org
Target Milestone: ---
Building the snapshot gcc-13-20221120 on macOS 13 (actually an aarch64 machine,
but using x86_64-apple-darwin21 compiler under Rosetta) with Command Line Tools
14.1.
Source patched as commit ac50541 for PR107781.
Phase 1 (actually configured with --disable-bootstrap) fails with this (I was
building with -j7, so had to extract the relevant parts of the log:
checking __sync extensions...
/Volumes/Miscellaneous1/x86_64/gcc-13-20221120/gcc/./gcc/xgcc
-B/Volumes/Miscellaneous1/x86_64/gcc-13-20221120/gcc/./gcc/
-B/opt/gcc-13-20221120/x86_64-apple-darwin21/bin/
-B/opt/gcc-13-20221120/x86_64-apple-darwin21/lib/ -isystem
/opt/gcc-13-20221120/x86_64-apple-darwin21/include -isystem
/opt/gcc-13-20221120/x86_64-apple-darwin21/sys-include
--sysroot=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -c -g -O2
-fno-common -W -Wall -gnatpg -nostdinc -fno-toplevel-reorder \
g-debpoo.adb -o g-debpoo.o
...
/var/folders/ch/k_zwspdx3qsfbt1_x21zld6m0000gn/T//ccJJp5X6.s:11992:2: error:
ambiguous instructions require an explicit suffix (could be 'fisttps', or
'fisttpl')
fisttp -408(%rbp)
^
/var/folders/ch/k_zwspdx3qsfbt1_x21zld6m0000gn/T//ccJJp5X6.s:12278:2: error:
ambiguous instructions require an explicit suffix (could be 'fisttps', or
'fisttpl')
fisttp -408(%rbp)
^
...
make[6]: *** [g-debpoo.o] Error 1
Configure script (BUILD set to x86_64-apple-darwin21):
+++++++++++++++
XCODE=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk
CLU=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
$GCC_SRC/configure \
--prefix=$PREFIX \
--without-libiconv-prefix \
--disable-libmudflap \
--disable-libstdcxx-pch \
--disable-libsanitizer \
--disable-libcc1 \
--disable-libcilkrts \
--disable-multilib \
--disable-nls \
--enable-languages=c,c++,ada \
--host=$BUILD \
--target=$BUILD \
--build=$BUILD \
--without-isl \
--with-build-sysroot="$(xcrun --show-sdk-path)" \
--with-sysroot= \
--with-specs="%{!sysroot=*:--sysroot=%:if-exists-else($XCODE $CLU)}" \
--with-build-config=no \
--disable-bootstrap \
CFLAGS=-Wno-deprecated-declarations \
CXXFLAGS=-Wno-deprecated-declarations
+++++++++++
