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authorTom de Vries <tdevries@suse.de>2019-06-15 07:06:19 +0000
committerTom de Vries <vries@gcc.gnu.org>2019-06-15 07:06:19 +0000
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parent2789efe3ee85f85ec83139fab6930cf2175be06a (diff)
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[openacc] Disable pass_thread_jumps for IFN_UNIQUE
If we compile the openacc testcase with -fopenacc -O2, we run into a SIGSEGV or assert. The root cause for this is that pass_thread_jumps breaks the invariant that OACC_FORK and OACC_JOIN mark the start and end of a single-entry-single-exit region. Fix this by bailing out when encountering an IFN_UNIQUE in thread_jumps::profitable_jump_thread_path. Bootstrapped and reg-tested on x86_64. Build and reg-tested libgomp on x86_64 with nvptx accelerator. 2019-06-15 Tom de Vries <tdevries@suse.de> PR tree-optimization/90009 * tree-ssa-threadbackward.c (thread_jumps::profitable_jump_thread_path): Return NULL if bb contains IFN_UNIQUE. * testsuite/libgomp.oacc-c-c++-common/pr90009.c: New test. From-SVN: r272321
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