Commit Graph

3 Commits

Author SHA1 Message Date
Simon Pilgrim b85acbadcc [X86][SSE] Regenerate TRUNC-SEXT tests
Tidied up triple and regenerate tests using update_llc_test_checks.py

llvm-svn: 253782
2015-11-21 13:32:29 +00:00
David Blaikie a79ac14fa6 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

llvm-svn: 230794
2015-02-27 21:17:42 +00:00
Sanjay Patel 81ecbb0737 Fix a logic bug in x86 vector codegen: sext (zext (x) ) != sext (x) (PR20472).
Remove a block of code from LowerSIGN_EXTEND_INREG() that was added with:
http://llvm.org/viewvc/llvm-project?view=revision&revision=177421

And caused:
http://llvm.org/bugs/show_bug.cgi?id=20472 (more analysis here)
http://llvm.org/bugs/show_bug.cgi?id=18054

The testcases confirm that we (1) don't remove a zext op that is necessary and (2) generate
a pmovz instead of punpck if SSE4.1 is available. Although pmovz is 1 byte longer, it allows 
folding of the load, and so saves 3 bytes overall.

Differential Revision: http://reviews.llvm.org/D4909

llvm-svn: 216679
2014-08-28 18:59:22 +00:00