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| author | Jan Hubicka <jh@suse.cz> | 2012-10-17 19:12:05 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2012-10-17 17:12:05 +0000 |
| commit | b7442c2fe0e28b96f0789d41132849b7c99402d4 (patch) | |
| tree | ec690798a65b49ddcc245df79c6075578b59178a /gcc/tree.c | |
| parent | 90922d36383f2d2f5d09f26046a48d71168a166b (diff) | |
| download | gcc-b7442c2fe0e28b96f0789d41132849b7c99402d4.zip gcc-b7442c2fe0e28b96f0789d41132849b7c99402d4.tar.gz gcc-b7442c2fe0e28b96f0789d41132849b7c99402d4.tar.bz2 | |
tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Add edge_to_cancel parameter and use it to estimate code optimized out in the...
* tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Add edge_to_cancel
parameter and use it to estimate code optimized out in the final iteration.
(loop_edge_to_cancel): New function.
(try_unroll_loop_completely): New IRRED_IVALIDATED parameter;
handle unrolling loops with bounds given via max_loop_iteratins;
handle unrolling non-inner loops when code size shrinks;
tidy dump output; when the last iteration loop still stays
as loop in the CFG forcongly redirect the latch to
__builtin_unreachable.
(canonicalize_loop_induction_variables): Add irred_invlaidated
parameter; record niter bound derrived; dump
max_loop_iterations bounds; call try_unroll_loop_completely
even if no niter bound is given.
(canonicalize_induction_variables): Handle irred_invalidated.
(tree_unroll_loops_completely): Handle non-innermost loops;
handle irred_invalidated.
* cfgloop.h (unlop): Declare.
* cfgloopmanip.c (unloop): Export.
* tree.c (build_common_builtin_nodes): Build BULTIN_UNREACHABLE.
* gcc.target/i386/l_fma_float_?.c: Update.
* gcc.target/i386/l_fma_double_?.c: Update.
* gfortran.dg/do_1.f90: XFAIL
* gcc.dg/tree-ssa/cunroll-1.c: New testcase.
* gcc.dg/tree-ssa/cunroll-2.c: New testcase.
* gcc.dg/tree-ssa/cunroll-3.c: New testcase.
* gcc.dg/tree-ssa/cunroll-4.c: New testcase.
* gcc.dg/tree-ssa/cunroll-5.c: New testcase.
* gcc.dg/tree-ssa/ldist-17.c: Block cunroll to make testcase still
valid.
From-SVN: r192538
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -9524,6 +9524,15 @@ build_common_builtin_nodes (void) tree tmp, ftype; int ecf_flags; + if (!builtin_decl_explicit_p (BUILT_IN_UNREACHABLE)) + { + ftype = build_function_type (void_type_node, void_list_node); + local_define_builtin ("__builtin_unreachable", ftype, BUILT_IN_UNREACHABLE, + "__builtin_unreachable", + ECF_NOTHROW | ECF_LEAF | ECF_NORETURN + | ECF_CONST | ECF_LEAF); + } + if (!builtin_decl_explicit_p (BUILT_IN_MEMCPY) || !builtin_decl_explicit_p (BUILT_IN_MEMMOVE)) { |