llvm/test/Transforms/Reassociate, branch release_29http://llvm.orghttps://git.amat.us/llvm/atom/test/Transforms/Reassociate?h=release_292011-02-17T01:29:24Zfix PR9215, preventing -reassociate from clearing nsw/nuw when2011-02-17T01:29:24ZChris Lattnersabre@nondot.org2011-02-17T01:29:24Zurn:sha1:de1d8a544c1398cc34d4c865c5afa8b91f96316c
it swaps the LHS/RHS of a single binop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125700 91177308-0d34-0410-b5e6-96231b3b80d8
Fix reassociate to clear optional flags, such as nsw.2011-02-02T02:02:34ZDan Gohmangohman@apple.com2011-02-02T02:02:34Zurn:sha1:46985a14409486293b689ca07dd07d7482734795
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124712 91177308-0d34-0410-b5e6-96231b3b80d8
Fix PR9039, a use-after-free in reassociate. The issue was that the2011-01-26T10:08:38ZDuncan Sandsbaldrick@free.fr2011-01-26T10:08:38Zurn:sha1:37f87c7aa914fba1362bb187ce5a386abfe94e39
operand being factorized (and erased) could occur several times in Ops,
resulting in freed memory being used when the next occurrence in Ops was
analyzed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124287 91177308-0d34-0410-b5e6-96231b3b80d8
fix a nice subtle reassociate bug which would only occur2010-03-05T07:18:54ZChris Lattnersabre@nondot.org2010-03-05T07:18:54Zurn:sha1:893075f46e9d07e3fe94e2b0e0f3ff8ae4061549
in a very specific use pattern embodied in the carefully
reduced testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97794 91177308-0d34-0410-b5e6-96231b3b80d8
Add a test for my change to disable reassociation for i1 types.2010-02-06T01:16:25ZBob Wilsonbob.wilson@apple.com2010-02-06T01:16:25Zurn:sha1:8d535859e583183591503aa63cd4559271803920
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95465 91177308-0d34-0410-b5e6-96231b3b80d8
filecheckize2010-01-18T21:58:32ZChris Lattnersabre@nondot.org2010-01-18T21:58:32Zurn:sha1:f08872048ff5683759610c7d4c6b41751912e939
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93775 91177308-0d34-0410-b5e6-96231b3b80d8
only factor from expressions whose uses are empty and whose2010-01-09T06:01:36ZChris Lattnersabre@nondot.org2010-01-09T06:01:36Zurn:sha1:c2d1b6949c5141d21827cc94daea6ae4b1a9c750
base is the right expression type. This fixes PR5981.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93045 91177308-0d34-0410-b5e6-96231b3b80d8
fix an infinite loop in reassociate building emacs.2010-01-05T04:55:35ZChris Lattnersabre@nondot.org2010-01-05T04:55:35Zurn:sha1:5f94af0f725690a75b18909da2ff8cee0f93bebb
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92679 91177308-0d34-0410-b5e6-96231b3b80d8
When factoring multiply expressions across adds, factor both 2010-01-01T01:13:15ZChris Lattnersabre@nondot.org2010-01-01T01:13:15Zurn:sha1:9506c930aa1f7c5fbf1e0e1e6bfae71f4a61ee15
positive and negative forms of constants together. This
allows us to compile:
int foo(int x, int y) {
return (x-y) + (x-y) + (x-y);
}
into:
_foo: ## @foo
subl %esi, %edi
leal (%rdi,%rdi,2), %eax
ret
instead of (where the 3 and -3 were not factored):
_foo:
imull $-3, 8(%esp), %ecx
imull $3, 4(%esp), %eax
addl %ecx, %eax
ret
this started out as:
movl 12(%ebp), %ecx
imull $3, 8(%ebp), %eax
subl %ecx, %eax
subl %ecx, %eax
subl %ecx, %eax
ret
This comes from PR5359.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92381 91177308-0d34-0410-b5e6-96231b3b80d8
test case we alredy get right.2010-01-01T00:50:00ZChris Lattnersabre@nondot.org2010-01-01T00:50:00Zurn:sha1:75954e0bbd83d7f9f95ac82b46c92cb9eec25870
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92380 91177308-0d34-0410-b5e6-96231b3b80d8