2 Commits

Author	SHA1	Message	Date
Dan Gohman	89f64e13fe	When canonicalizing icmp operand order to put the loop invariant ... operand on the left, the interesting operand is on the right. This fixes a bug where LSR was failing to recognize ICmpZero uses, which led it to be unable to reverse the induction variable in the attached testcase. Delete test/CodeGen/X86/stack-color-with-reg-2.ll, because its test is extremely fragile and hard to meaningfully update. llvm-svn: 104262	2010-05-20 19:26:52 +00:00
Dan Gohman	772b731ca5	Teach LSR how to cope better with unrolled loops on targets where ... the addressing modes don't make this trivially easy. This allows it to avoid falling into the less precise heuristics in more cases. llvm-svn: 104186	2010-05-19 23:43:12 +00:00