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re PR target/10907 ([IA64] gcc violates the ia64 ABI) 

PR target/10907
        * config/ia64/ia64.c (ia64_epilogue_uses): GP is live at end
        even with !TARGET_CONST_GP.
        (ia64_function_ok_for_sibcall): Reject non-local functions.

From-SVN: r69515
This commit is contained in:
Richard Henderson 2003-07-17 09:33:22 -07:00 committed by Richard Henderson
parent 2a39bedbed
commit b23ba0b898
2 changed files with 15 additions and 14 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2003-07-17 Richard Henderson <rth@redhat.com>
PR target/10907
* config/ia64/ia64.c (ia64_epilogue_uses): GP is live at end
even with !TARGET_CONST_GP.
(ia64_function_ok_for_sibcall): Reject non-local functions.
2003-07-17 Steven Bosscher <steven@gcc.gnu.org>
* c-common.c (c_estimate_num_insns_1): Don't handle

22
gcc/config/ia64/ia64.c
View File

@ -3642,14 +3642,9 @@ ia64_function_ok_for_sibcall (decl, exp)
tree decl;
tree exp ATTRIBUTE_UNUSED;
{
/* Direct calls are always ok. */
if (decl)
return true;
/* If TARGET_CONST_GP is in effect, then our caller expects us to
return with our current GP. This means that we'll always have
a GP reload after an indirect call. */
return !ia64_epilogue_uses (R_GR (1));
/* We must always return with our current GP. This means we can
only sibcall to functions defined in the current module. */
return decl && (*targetm.binds_local_p) (decl);
}
@ -7356,12 +7351,11 @@ ia64_epilogue_uses (regno)
switch (regno)
{
case R_GR (1):
/* When a function makes a call through a function descriptor, we
will write a (potentially) new value to "gp". After returning
from such a call, we need to make sure the function restores the
original gp-value, even if the function itself does not use the
gp anymore. */
return (TARGET_CONST_GP && !(TARGET_AUTO_PIC || TARGET_NO_PIC));
/* With a call to a function in another module, we will write a new
value to "gp". After returning from such a call, we need to make
sure the function restores the original gp-value, even if the
function itself does not use the gp anymore. */
return !(TARGET_AUTO_PIC || TARGET_NO_PIC);
case IN_REG (0): case IN_REG (1): case IN_REG (2): case IN_REG (3):
case IN_REG (4): case IN_REG (5): case IN_REG (6): case IN_REG (7):