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author | Dimitry Andric <dim@FreeBSD.org> | 2019-09-21 21:01:38 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2019-09-21 21:01:38 +0000 |
commit | 8a4b4f9f2b8c2e81240cdbdfa0f62deb3f686cf2 (patch) | |
tree | 105fa29b30d257e49f248ea02ba62d10061513b0 /sys/dev/usb | |
parent | 7dfde55afda21dc7a88c5e23e69e84b16edf51a4 (diff) | |
download | src-8a4b4f9f2b8c2e81240cdbdfa0f62deb3f686cf2.tar.gz src-8a4b4f9f2b8c2e81240cdbdfa0f62deb3f686cf2.zip |
Pull in r371557 from upstream clang trunk (by Richard Smith):
When evaluating a __builtin_constant_p conditional, always enter
constant-folding mode regardless of the original evaluation mode.
In order for this to be correct, we need to track whether we're
checking for a potential constant expression or checking for
undefined behavior separately from the evaluation mode enum, since we
don't want to clobber those states when entering constant-folding
mode.
This should fix "ld: error: undefined symbol: ix86_isa_flags" (and many
other symbol names) during the initial stages of the lang/gcc* ports.
The issue was that without optimization, the __builtin_constant_p()
expressions generated in gencondmd.c would emit references to global
variables that were undefined, such as ix86_isa_flags.
PR: 240629
Notes
Notes:
svn path=/projects/clang900-import/; revision=352586
Diffstat (limited to 'sys/dev/usb')
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