Evan Cheng 5ebf2acd84 Optimize conditional branch on i1 phis with non-constant inputs. ...

This turns:

eq:
        %3 = icmp eq i32 %1, %2
        br label %join

ne:
        %4 = icmp ne i32 %1, %2
        br label %join

join:
        %5 = phi i1 [%3, %eq], [%4, %ne]
        br i1 %5, label %yes, label %no

=>

eq:
        %3 = icmp eq i32 %1, %2
        br i1 %3, label %yes, label %no

ne:
        %4 = icmp ne i32 %1, %2
        br i1 %4, label %yes, label %no

llvm-svn: 69102

2009-04-14 23:40:03 +00:00

..

2006-08-14-SingleEntryPhiCrash.ll

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2006-11-01-PhiNodeCrash.ll

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2007-08-01-InvalidRead.ll

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2009-01-25-SingleEntryPHI.ll

Handle single-entry phi nodes gracefully in condprop.

2009-01-26 02:18:20 +00:00

basictest-dbg.ll

Ignore dbg intrinsics while propagating conditional expression info. Take 2.

2009-02-05 23:32:52 +00:00

basictest.ll

Remove dead blocks in the end.

2009-02-05 19:59:42 +00:00

dg.exp

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phisimplify2.ll

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phisimplify3.ll

Optimize conditional branch on i1 phis with non-constant inputs.

2009-04-14 23:40:03 +00:00

phisimplify.ll

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