(Re-apply patch after bug fixing)
This diff makes sure that the driver does not pass
-fomit-frame-pointer or -momit-leaf-frame-pointer to
the frontend when -pg is used. Currently, clang gives
an error if -fomit-frame-pointer is used in combination
with -pg, but -momit-leaf-frame-pointer was forgotten.
Also, disable frame pointer elimination in the frontend
when -pg is set.
Patch by Stefan Kempf.
llvm-svn: 253886
Always starting blocks at the top of their containing loops works, but creates
unnecessarily deep nesting because it makes all blocks in a loop overlap.
Refine the BLOCK placement algorithm to start blocks at nearest common
dominating points instead, which significantly shrinks them and reduces
overlapping.
llvm-svn: 253876
Summary:
This change fixes the SaturatingMultiply<T>() function template to not cause undefined behavior with T=uint16_t.
Thanks to Richard Smith's contribution, it also no longer requires an integer division.
Patch by Richard Smith.
Reviewers: silvas, davidxl
Subscribers: rsmith, davidxl, llvm-commits
Differential Revision: http://reviews.llvm.org/D14845
llvm-svn: 253870
Runtime library requires, that codegen for 'depend' clause for 'out' dependency kind must be the same as codegen for 'depend' clause with 'inout' dependency.
llvm-svn: 253866
Disable custom handling of signed 32-bit and 64-bit integer divide.
Add test cases for both 32-bit and 64-bit integer overflow crashes.
llvm-svn: 253865
If AS of a variable/parameter declaration is not set by the source,
OpenCL v2.0 s6.5 defines explicit rules for default ASes:
- The AS of global and local static variables defaults to global;
- All pointers point to generic AS.
http://reviews.llvm.org/D13168
llvm-svn: 253863
the case where a specific range is replaced by new text. Previously,
the calculation would shift any position from within a replaced region
to the first character after the region. This is undersirable, e.g. for
clang-format's include sorting.
llvm-svn: 253859
On OS X, __thread variables are lazily heap-allocated (with malloc). Therefore, they're recognized as heap blocks (which is what they are) and not as TLS variables in TSan reports. Figuring out if a heap block is a TLS or not is difficult (in malloc interceptor we could analyze the caller and then mark the object), so let's instead modify the tests so that we expect the report to say "Location is heap block" instead of "Location is TLS".
Differential Revision: http://reviews.llvm.org/D14873
llvm-svn: 253858
This diff makes sure that the driver does not pass
-fomit-frame-pointer or -momit-leaf-frame-pointer to
the frontend when -pg is used. Currently, clang gives
an error if -fomit-frame-pointer is used in combination
with -pg, but -momit-leaf-frame-pointer was forgotten.
Also, disable frame pointer elimination in the frontend
when -pg is set.
Patch by Stefan Kempf.
llvm-svn: 253846
1. move const qualifier out of raw header field type as runtime use of the header
needs to initialze the fields
2. use C style casting for integer types.
llvm-svn: 253844
The pointer returned by __RTDynamicCast must be bitcasted. However, it
was not expected that __RTDynamicCast would be invoked, resulting in the
bitcast occuring in a different BasicBlock than the invoke. This caused
a down-stream PHI to get confused about which BasicBlock the incomming
value was from.
This fixes PR25606.
llvm-svn: 253843
Sumanth Gundapaneni