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alpha.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): True. 

* config/alpha/alpha.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): True.
        (alpha_output_mi_thunk_osf): Handle vcall_offset.
	* g++.dg/inherit/thunk1.C: Enable for s390 and alpha.

From-SVN: r58462
This commit is contained in:
Richard Henderson 2002-10-23 10:55:56 -07:00 committed by Richard Henderson
parent 8bcefb43cc
commit e23580688c
4 changed files with 43 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2002-10-23 Richard Henderson <rth@redhat.com>
* config/alpha/alpha.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): True.
(alpha_output_mi_thunk_osf): Handle vcall_offset.
2002-10-23 Zack Weinberg <zack@codesourcery.com>
* langhooks.h (struct lang_hooks_for_tree_inlining): Add

35
gcc/config/alpha/alpha.c
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@ -301,7 +301,7 @@ static void unicosmk_unique_section PARAMS ((tree, int));
#undef TARGET_ASM_OUTPUT_MI_THUNK
#define TARGET_ASM_OUTPUT_MI_THUNK alpha_output_mi_thunk_osf
#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
#define TARGET_ASM_CAN_OUTPUT_MI_THUNK default_can_output_mi_thunk_no_vcall
#define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_tree_hwi_hwi_tree_true
#endif
struct gcc_target targetm = TARGET_INITIALIZER;
@ -7866,7 +7866,7 @@ alpha_output_mi_thunk_osf (file, thunk_fndecl, delta, vcall_offset, function)
FILE *file;
tree thunk_fndecl ATTRIBUTE_UNUSED;
HOST_WIDE_INT delta;
HOST_WIDE_INT vcall_offset ATTRIBUTE_UNUSED;
HOST_WIDE_INT vcall_offset;
tree function;
{
HOST_WIDE_INT hi, lo;
@ -7901,6 +7901,37 @@ alpha_output_mi_thunk_osf (file, thunk_fndecl, delta, vcall_offset, function)
emit_insn (gen_adddi3 (this, this, tmp));
}
/* Add a delta stored in the vtable at VCALL_OFFSET. */
if (vcall_offset)
{
rtx tmp, tmp2;
tmp = gen_rtx_REG (Pmode, 0);
emit_move_insn (tmp, gen_rtx_MEM (Pmode, this));
lo = ((vcall_offset & 0xffff) ^ 0x8000) - 0x8000;
hi = (((vcall_offset - lo) & 0xffffffff) ^ 0x80000000) - 0x80000000;
if (hi + lo == vcall_offset)
{
if (hi)
emit_insn (gen_adddi3 (tmp, tmp, GEN_INT (hi)));
}
else
{
tmp2 = alpha_emit_set_long_const (gen_rtx_REG (Pmode, 1),
vcall_offset, -(vcall_offset < 0));
emit_insn (gen_adddi3 (tmp, tmp, tmp2));
lo = 0;
}
if (lo)
tmp2 = gen_rtx_PLUS (Pmode, tmp, GEN_INT (lo));
else
tmp2 = tmp;
emit_move_insn (tmp, gen_rtx_MEM (Pmode, tmp2));
emit_insn (gen_adddi3 (this, this, tmp));
}
/* Generate a tail call to the target function. */
if (! TREE_USED (function))
{

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2002-10-23 Richard Henderson <rth@redhat.com>
* g++.dg/inherit/thunk1.C: Enable for s390 and alpha.
2002-10-22 Mark Mitchell <mark@codesourcery.com>
PR c++/6579

2
gcc/testsuite/g++.dg/inherit/thunk1.C
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@ -1,4 +1,4 @@
// { dg-do run { target i?86-*-* } }
// { dg-do run { target i?86-*-* s390*-*-* alpha*-*-* } }
#include <stdarg.h>