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PR tree-optimization/68835
authorjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 17 Dec 2015 13:52:25 +0000 (13:52 +0000)
committerjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 17 Dec 2015 13:52:25 +0000 (13:52 +0000)
commitb55deb213a41cc84bfc47901960dc014f5412f35
treeb72d48432f46da6493f758fd909b5dbd54dee777tree | snapshot
parentfa79057be75f3575d14e3b8d917c745eeea4a35acommit | diff
PR tree-optimization/68835
* tree.c (get_int_cst_ext_nunits): Return
cst.get_precision () / HOST_BITS_PER_WIDE_INT + 1
for all unsigned wi::neg_p (cst) constants.
(build_new_int_cst): If cst.get_precision is not a multiple
of HOST_BITS_PER_WIDE_INT, zero extend -1 to the precision
% HOST_BITS_PER_WIDE_INT.

* gcc.dg/pr68835-1.c: New test.
* gcc.dg/pr68835-2.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231757 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.dg/pr68835-1.c [new file with mode: 0644] blob
gcc/testsuite/gcc.dg/pr68835-2.c [new file with mode: 0644] blob
gcc/tree.c diff | blob | history
Domain: System / Toolchain;