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authorJeff Law <jeffreyalaw@gmail.com>2022-10-11 00:44:26 -0400
committerJeff Law <jeffreyalaw@gmail.com>2022-10-11 00:44:26 -0400
commitdb24bdc743cf23ea12d2dcf8254d86ab366bb46d (patch)
tree0072665445eb9625ef4438c5d5ddc575ca0ec584 /zlib/test
parentd2efb10a19b3948e48a2d9273b294db4e1d65296 (diff)
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[PR rtl-optimization/107182] Clear EDGE_CROSSING for jump->ret optimization
When turning a jump to a return into a return, we need to clear EDGE_CROSSING of the fallthru edge to prevent a checking failure. I considered not applying the transformation when the edge has EDGE_CROSSING set, but it still seems like we ought to eliminate the unnecessary jump in that case. gcc/ PR rtl-optimization/107182 * cfgrtl.cc (fixup_reorder_chain): When optimizing a jump to a return, clear EDGE_CROSSING on the appropriate edge.
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