Chris Lattner fdb19e5887 Fix PR2506 by being a bit more careful about reverse fact propagation when ... disproving a condition. This actually compiles the existing testcase (udiv_select_to_select_shift) to: define i64 @test(i64 %X, i1 %Cond) { entry: %divisor1.t = lshr i64 %X, 3 ; <i64> [#uses=1] %quotient2 = lshr i64 %X, 3 ; <i64> [#uses=1] %sum = add i64 %divisor1.t, %quotient2 ; <i64> [#uses=1] ret i64 %sum } instead of: define i64 @test(i64 %X, i1 %Cond) { entry: %quotient1.v = select i1 %Cond, i64 3, i64 4 ; <i64> [#uses=1] %quotient1 = lshr i64 %X, %quotient1.v ; <i64> [#uses=1] %quotient2 = lshr i64 %X, 3 ; <i64> [#uses=1] %sum = add i64 %quotient1, %quotient2 ; <i64> [#uses=1] ret i64 %sum } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53534 91177308-0d34-0410-b5e6-96231b3b80d8		2008-07-14 00:15:52 +00:00
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Hello	Clean up the use of static and anonymous namespaces. This turned up	2008-05-13 00:00:25 +00:00
Instrumentation	Tidy up BasicBlock::getFirstNonPHI, and change a bunch of places to	2008-05-23 21:05:58 +00:00
IPO	Use find instead of lower_bound.	2008-07-11 20:58:19 +00:00
Scalar	Fix PR2506 by being a bit more careful about reverse fact propagation when	2008-07-14 00:15:52 +00:00
Utils	Fix mishandling of the infinite loop case when merging two blocks. This	2008-07-13 22:23:11 +00:00
Makefile	remove attribution from lib Makefiles.	2007-12-29 20:09:26 +00:00