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Commit Graph

9 Commits

Author SHA1 Message Date
Raul E. Silvera
2e59d34e5d Change math intrinsic attributes from readonly to readnone. These
are operations that do not access memory but may be sensitive
to floating-point environment changes. LLVM does not attempt
to model FP environment changes, so this was unnecessarily conservative
and was getting on the way of some optimizations, in particular
SLP vectorization.

llvm-svn: 203037
2014-03-06 00:18:15 +00:00
Joerg Sonnenberger
72ca1c7c94 There is no exp10 on NetBSD.
llvm-svn: 197348
2013-12-15 20:36:17 +00:00
Yi Jiang
f648b7ec82 Resubmit r196544: Apply transformation on OS X 10.9+ and iOS 7.0+: pow(10, x) ―> __exp10(x)
llvm-svn: 197109
2013-12-12 01:55:04 +00:00
Manman Ren
4fcc808139 Revert 196544 due to internal bot failures.
llvm-svn: 196732
2013-12-08 20:28:33 +00:00
Yi Jiang
0bd0569be5 Apply transformation on OS X 10.9+ and iOS 7.0+: pow(10, x) ―> __exp10(x)
llvm-svn: 196544
2013-12-05 22:42:50 +00:00
Michael Kuperstein
9bedf7fc8c Adds missing TLI check for library simplification of
* pow(x, 0.5) -> fabs(sqrt(x)) 
* pow(2.0, x) -> exp2(x)

llvm-svn: 188656
2013-08-19 06:55:47 +00:00
Stephen Lin
cf082ae903 Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
This update was done with the following bash script:

  find test/Transforms -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc" $NAME; then
      TEMP=`mktemp -t temp`
      cp $NAME $TEMP
      sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
      while read FUNC; do
        sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
      done
      mv $TEMP $NAME
    fi
  done

llvm-svn: 186268
2013-07-14 01:42:54 +00:00
Bill Wendling
db672f1bc8 Use references to attribute groups on the call/invoke instructions.
Listing all of the attributes for the callee of a call/invoke instruction is way
too much and makes the IR unreadable. Use references to attributes instead.

llvm-svn: 175877
2013-02-22 09:09:42 +00:00
Meador Inge
a191db7d99 instcombine: Migrate math library call simplifications
This patch migrates the math library call simplifications from the
simplify-libcalls pass into the instcombine library call simplifier.

I have typically migrated just one simplifier at a time, but the math
simplifiers are interdependent because:

   1. CosOpt, PowOpt, and Exp2Opt all depend on UnaryDoubleFPOpt.
   2. CosOpt, PowOpt, Exp2Opt, and UnaryDoubleFPOpt all depend on
      the option -enable-double-float-shrink.

These two factors made migrating each of these simplifiers individually
more of a pain than it would be worth.  So, I migrated them all together.

llvm-svn: 167815
2012-11-13 04:16:17 +00:00