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re PR tree-optimization/23821 (DOM and VRP creating harder to optimize code)
authorRichard Guenther <rguenther@suse.de>
Mon, 5 Oct 2009 13:18:09 +0000 (13:18 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Mon, 5 Oct 2009 13:18:09 +0000 (13:18 +0000)
commite9d85fa6a7fdd48c00c02b8ad915a75d3b025708
treea75051f3125eb16e951b2147ac6b7ed7152c8259tree
parent916bd5f07f8a76e05c7f08d5a9b8ac5a21be23d5commit | diff
re PR tree-optimization/23821 (DOM and VRP creating harder to optimize code)

2009-10-05  Richard Guenther  <rguenther@suse.de>

PR tree-optimization/23821
* tree-vrp.c (vrp_finalize): Do not perform copy propagation.
* tree-ssa-dom.c (cprop_operand): Do not propagate copies into
simple IV increments.

* gcc.dg/torture/pr23821.c: New testcase.

From-SVN: r152449
gcc/ChangeLog diff | blob | blame | history
gcc/testsuite/ChangeLog diff | blob | blame | history
gcc/testsuite/gcc.dg/torture/pr23821.c [new file with mode: 0644] blob
gcc/tree-ssa-dom.c diff | blob | blame | history
gcc/tree-vrp.c diff | blob | blame | history
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