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Author SHA1 Message Date
Stephen Canon 8216d88511 Don't raise inexact when lowering ceil, floor, round, trunc. 
The C standard has historically not specified whether or not these functions should raise the inexact flag. Traditionally on Darwin, these functions *did* raise inexact, and the llvm lowerings followed that conventions. n1778 (C bindings for IEEE-754 (2008)) clarifies that these functions should not set inexact. This patch brings the lowerings for arm64 and x86 in line with the newly specified behavior.  This also lets us fold some logic into TD patterns, which is nice.

Differential Revision: http://reviews.llvm.org/D12969

llvm-svn: 248266
 2015-09-22 11:43:17 +00:00
Rafael Espindola ae6000e86d Replace more uses of sse41 with sse4.1. 
llc using the host cpu features and *waning* on unknown features is probably
not a good thing :-(

llvm-svn: 189144
 2013-08-23 20:39:19 +00:00
Stephen Lin d24ab20e9b Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. 
This update was done with the following bash script:

  find test/CodeGen -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc.*debug" $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
      sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP
      sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP
      sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP
      sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP
      mv $TEMP $NAME
    fi
  done

llvm-svn: 186280
 2013-07-14 06:24:09 +00:00
Bob Wilson 4c65c505e0 Add test triples to fix win32 failures. Revert workaround from r161292. 
I don't have a win32 system to test, so hopefully I got them all fixed here.

llvm-svn: 161519
 2012-08-08 20:31:37 +00:00
Benjamin Kramer 16bbfbec66 X86: Add patterns for the various rounding ops for SSE4.1 and AVX. 
llvm-svn: 146257
 2011-12-09 15:44:03 +00:00