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re PR rtl-optimization/93088 (Compile time hog on gcc/testsuite/gcc.target/i386/pr563...
authorJakub Jelinek <jakub@redhat.com>
Wed, 22 Jan 2020 16:48:48 +0000 (17:48 +0100)
committerJakub Jelinek <jakub@redhat.com>
Wed, 22 Jan 2020 19:12:55 +0000 (20:12 +0100)
commit75cdf669074fe6a49ea6a3582acf54d00acfa9ce
tree68d9dc86866ef5688e2fc0d624fcec35a0103a58tree
parent7bf1518f84d5e676dd5f4335783eaf7b742961a5commit | diff
re PR rtl-optimization/93088 (Compile time hog on gcc/testsuite/gcc.target/i386/pr56348.c w/ -O3 -funroll-loops -fno-tree-dominator-opts -fno-tree-vrp)

PR rtl-optimization/93088
* loop-iv.c (find_single_def_src): Punt after looking through
128 reg copies for regs with single definitions.  Move definitions
to first uses.

* gcc.target/i386/pr93088.c: New test.
gcc/ChangeLog diff | blob | blame | history
gcc/loop-iv.c diff | blob | blame | history
gcc/testsuite/ChangeLog diff | blob | blame | history
gcc/testsuite/gcc.target/i386/pr93088.c [new file with mode: 0644] blob
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