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| author | Chris Lattner <sabre@nondot.org> | 2008-04-25 04:12:29 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-04-25 04:12:29 +0000 |
| commit | f7de528463dbc1353cd56ffb3efc4abb563f2c4e (patch) | |
| tree | 4f2e20067bab238a846f21514751eeaad8359871 /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | 2ad5aef5e615c12feb21107c023df313f5c38726 (diff) | |
| download | bcm5719-llvm-f7de528463dbc1353cd56ffb3efc4abb563f2c4e.tar.gz bcm5719-llvm-f7de528463dbc1353cd56ffb3efc4abb563f2c4e.zip | |
Don't infininitely thread branches when a threaded edge
goes back to the block, e.g.:
Threading edge through bool from 'bb37.us.thread3829' to 'bb37.us' with cost: 1, across block:
bb37.us: ; preds = %bb37.us.thread3829, %bb37.us, %bb33
%D1361.1.us = phi i32 [ %tmp36, %bb33 ], [ %D1361.1.us, %bb37.us ], [ 0, %bb37.us.thread3829 ] ; <i32> [#uses=2]
%tmp39.us = icmp eq i32 %D1361.1.us, 0 ; <i1> [#uses=1]
br i1 %tmp39.us, label %bb37.us, label %bb42.us
llvm-svn: 50251
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions
