c29c92c789
gcc/ChangeLog:
* doc/invoke.texi (-ffinite-loops): Document new option.
* common.opt (-ffinite-loops): New option.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Mark
IFN_GOACC_LOOP calls as necessary.
* tree-ssa-loop-niter.c (finite_loop_p): Assume loop with an exit
is finite.
* omp-offload.c (oacc_xform_loop): Skip lowering if return value of
IFN_GOACC_LOOP call is not used.
* opts.c (default_options_table): Enable -ffinite-loops at -O2+.
gcc/testsuite/ChangeLog:
* g++.dg/tree-ssa/empty-loop.C: New test.
* gcc.dg/tree-ssa/dce-2.c: New test.
* gcc.dg/const-1.c: Add -fno-finite-loops option.
* gcc.dg/graphite/graphite.exp: Likewise.
* gcc.dg/loop-unswitch-1.c: Likewise.
* gcc.dg/predict-9.c: Likewise.
* gcc.dg/pure-2.c: Likewise.
* gcc.dg/tree-ssa/20040211-1.c: Likewise.
* gcc.dg/tree-ssa/loop-10.c: Likewise.
* gcc.dg/tree-ssa/split-path-6.c: Likewise.
* gcc.dg/tree-ssa/ssa-thread-12.c: Likewise.
libgomp/ChangeLog:
* testsuite/libgomp.oacc-c-c++-common/pr84955-1.c: New test.
From-SVN: r272234
32 lines
478 B
C
32 lines
478 B
C
/* { dg-do compile } */
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/* { dg-options "-O2 -fdump-tree-cddce2 -ffinite-loops" } */
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int
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f1 (void)
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{
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int i, j;
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#pragma acc parallel loop tile(2,3)
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for (i = 1; i < 10; i++)
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for (j = 1; j < 10; j++)
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for (;;)
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;
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return i + j;
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}
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int
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f2 (void)
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{
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int i, j, k;
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#pragma acc parallel loop tile(2,3)
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for (i = 1; i < 10; i++)
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for (j = 1; j < 10; j++)
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for (k = 1; k < 10; k++)
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;
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return i + j;
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}
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/* { dg-final { scan-tree-dump-not "if" "cddce2"} } */
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