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12 Commits

Author SHA1 Message Date
Bob Wilson 2616e2ec85 Use -mno-implicit-float by default for kernel/kext code. <rdar://13177960> 
Apple's kernel engineers have been expecting this behavior even though
we've never implemented it before, as far as I can tell. In recent months,
clang has gotten better at using vector instructions to optimize memcpy-like
operations, and that has exposed problems when vector/floating-point
instructions are used in kexts that don't support that. This behavior also
matches what Apple's GCC did for PowerPC targets.

llvm-svn: 174838
 2013-02-10 16:01:41 +00:00
Bob Wilson 2cc9690f5e Recognize -mno-implicit-float option for x86 as well as ARM. <rdar://13180731> 
For x86 targets, we've been using the -msoft-float option to control passing
the no-implicit-float option to cc1. Since the -mno-implicit-float option is
now accepted by the driver, this just makes it work for x86 the same as it
does for ARM targets.

llvm-svn: 174836
 2013-02-10 15:25:44 +00:00
Chad Rosier c14ded7182 Rename the driver option to -mno-implicit-float, per Eli's suggestion. 
llvm-svn: 156950
 2012-05-16 21:19:55 +00:00
Chad Rosier f1985d2a44 [driver] Allow the driver to directly accept the -no-implicit-float option, so that the 
generation of implicit floating point instructions can be disable for ARM. 
rdar://11409142

llvm-svn: 156942
 2012-05-16 20:40:09 +00:00
Sebastian Pop 422377cfd3 rename -ccc-host-triple into -target 
llvm-svn: 148582
 2012-01-20 22:01:23 +00:00
Eli Friedman d749c6bf2e Revert r148138; it's causing test failures. 
llvm-svn: 148141
 2012-01-13 21:33:06 +00:00
Sebastian Pop 9a8d528ddf rename -ccc-host-triple into -target 
llvm-svn: 148138
 2012-01-13 20:37:02 +00:00
Daniel Dunbar 5618e98f33 Update tests to use %clang instead of 'clang', and forcibly disable use of ' 
clang ' or ' clang -cc1 ' or ' clang-cc ' in test lines (by substituting them to
garbage).

llvm-svn: 91460
 2009-12-15 22:01:24 +00:00
Daniel Dunbar 8bed86c43e Standardize Driver translation to call clang-cc using '-foo' form instead of '--foo'. 
llvm-svn: 89497
 2009-11-20 22:21:36 +00:00
Daniel Dunbar 8b57697954 Eliminate &&s in tests. 
- 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious.

llvm-svn: 86430
 2009-11-08 01:45:36 +00:00
Devang Patel 9e24386c65 Set function Attribute::NoImplicitFloat appropriately. 
llvm-svn: 72961
 2009-06-05 22:05:48 +00:00
Daniel Dunbar 13357aef14 Driver: Unbreak ArgList::hasFlag. 
- <rdar://problem/6726511> [driver] clang does not have -msoft-float
   hooked up.

llvm-svn: 68044
 2009-03-30 18:13:26 +00:00