the Diagnostic class. Since we can already only have one diagnostic in
flight at a time, this shrinks DiagnosticInfo.
This reduces DiagnosticInfo to being basically a rather crazy smart pointer
to a DiagnosticInfo :)
llvm-svn: 59798
in the DiagnosticInfo class. This requires marking them as taking
a const DiagnosticInfo, which is bogus (they logically mutate DI),
but works with the C++ type system.
llvm-svn: 59797
"ISD::ADDO". ISD::ADDO is lowered into a target-independent form that does the
addition and then checks if the result is less than one of the operands. (If it
is, then there was an overflow.)
llvm-svn: 59779
schedulers. This doesn't have much immediate impact because
targets that use these schedulers by default don't yet provide
pipeline information.
This code also didn't have the benefit of register pressure
information. Also, removing it will avoid problems with list-burr
suddenly starting to do latency-oriented scheduling on x86 when we
start providing pipeline data, which would increase spilling.
llvm-svn: 59775
with a raw lexer instead of a PP lexer. This means that -verify doesn't scan
#include'd headers for expected-error/warning strings, and it also means that it
doesn't ignore them in #if 0.
llvm-svn: 59774
- Move out logic for handling the end-of-file to LexEndOfFile (to match the Lexer) class. The logic now mirrors the Lexer class more, which allows us to pass most of the Preprocessor test cases.
llvm-svn: 59768
some of the latency computation logic out of the SDNode
ScheduleDAG code into a TargetInstrItineraries helper method
to help with this.
llvm-svn: 59761
the RR scheduler actually does look at latency values, but it
doesn't use a hazard recognizer so it has no way to know when
a no-op is needed, as opposed to just stalling and incrementing
the cycle count.
llvm-svn: 59759
that an overflow/carry occured. These are converted into ISD::[SU]ADDO nodes,
which are lowered in a target-independent way into something sane. Eventually,
each target can implement their own method of checking the overflow/carry flags.
llvm-svn: 59756
MachineInstr scheduling DAG, meaning they implicitly depend on all
preceding defs. This fixes Benchmarks/Shootout-C++/except and
Regression/C++/EH/simple_rethrow in
-relocation-model=pic -disable-post-RA-scheduler=false
mode.
llvm-svn: 59747
Sanjiv Gupta