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| author | Jan Hubicka <hubicka@ucw.cz> | 2015-04-07 23:02:12 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2015-04-07 21:02:12 +0000 |
| commit | 006e317a14aca1c3d19485b66df07007bf07694e (patch) | |
| tree | 4fbaa001162291c95c195789b3e37bc9f7c1eab8 /gcc/calls.c | |
| parent | 4209b6d00f1cee70bcbe8f7ec3f2c7936fc0b3a5 (diff) | |
| download | gcc-006e317a14aca1c3d19485b66df07007bf07694e.zip gcc-006e317a14aca1c3d19485b66df07007bf07694e.tar.gz gcc-006e317a14aca1c3d19485b66df07007bf07694e.tar.bz2 | |
re PR ipa/65540 (internal error on s-fatllf.ads at -O2)
PR ipa/65540
* calls.c (initialize_argument_information): When producing tail
call also turn SSA_NAMES passed by references to original PARM_DECLs
* gcc.c-torture/compile/pr65540.c: New.
From-SVN: r221910
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index ec44624..970415d 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -1321,6 +1321,15 @@ initialize_argument_information (int num_actuals ATTRIBUTE_UNUSED, && TREE_CODE (base) != SSA_NAME && (!DECL_P (base) || MEM_P (DECL_RTL (base))))) { + /* We may have turned the parameter value into an SSA name. + Go back to the original parameter so we can take the + address. */ + if (TREE_CODE (args[i].tree_value) == SSA_NAME) + { + gcc_assert (SSA_NAME_IS_DEFAULT_DEF (args[i].tree_value)); + args[i].tree_value = SSA_NAME_VAR (args[i].tree_value); + gcc_assert (TREE_CODE (args[i].tree_value) == PARM_DECL); + } /* Argument setup code may have copied the value to register. We revert that optimization now because the tail call code must use the original location. */ |