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toplev.c (rest_of_handle_addresof): Rename into rest_of_handle_addressof.

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* toplev.c (rest_of_handle_addresof): Rename into
	rest_of_handle_addressof.  Delete unreachable blocks
	if dead edges were purged after the addressof pass.

From-SVN: r69545
This commit is contained in:
Eric Botcazou 2003-07-18 08:53:05 +02:00 • committed by Eric Botcazou
parent b2e608ca7f
commit f129791ccd
4 changed files with 52 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2003-07-18 Eric Botcazou <ebotcazou@libertysurf.fr>
PR optimization/11083
* toplev.c (rest_of_handle_addresof): Rename into
rest_of_handle_addressof. Delete unreachable blocks
if dead edges were purged after the addressof pass.
2003-07-18 Neil Booth <neil@daikokuya.co.uk>
* Makefile.in, configure, configure.in: Remove handling of

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2003-07-18 Eric Botcazou <ebotcazou@libertysurf.fr>
* g++.dg/opt/cfg1.C: New test.
2003-07-17 Mark Mitchell <mark@codesourcery.com>
PR optimization/11557

36
gcc/testsuite/g++.dg/opt/cfg1.C Normal file
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@ -0,0 +1,36 @@
// PR optimization/11083
// Origin: <nick@ilm.com>
// Reduced testcase by Wolfgang Bangerth <bangerth@ticam.utexas.edu>
// The compiler used to keep unreachable basic blocks after dead edges
// had been purged, which fooled the LCM code of the GCSE pass.
// { dg-do compile }
// { dg-options "-O2 -fnon-call-exceptions" }
extern void *memmove (void *, const void *, unsigned int) throw ();
struct S {
int *q;
S(int *i) : q(i) {}
};
struct X {
int *p;
void foo(S first, S last) {
try { memmove(0, 0, last.q - first.q); }
catch(...) { throw; }
}
void bar (const X& x);
};
void X::bar (const X& x)
{
const unsigned int xlen = S(x.p).q - S(x.p).q;
if (xlen > 0)
foo(S(x.p), S(x.p));
}

10
gcc/toplev.c
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@ -134,7 +134,7 @@ static void rest_of_handle_loop2 (tree, rtx);
static void rest_of_handle_jump_bypass (tree, rtx);
static void rest_of_handle_sibling_calls (rtx);
static void rest_of_handle_null_pointer (tree, rtx);
static void rest_of_handle_addresof (tree, rtx);
static void rest_of_handle_addressof (tree, rtx);
static void rest_of_handle_cfg (tree, rtx);
static void rest_of_handle_branch_prob (tree, rtx);
static void rest_of_handle_if_conversion (tree, rtx);
@ -2405,13 +2405,13 @@ rest_of_handle_cfg (tree decl, rtx insns)
/* Purge addressofs. */
static void
rest_of_handle_addresof (tree decl, rtx insns)
rest_of_handle_addressof (tree decl, rtx insns)
{
open_dump_file (DFI_addressof, decl);
purge_addressof (insns);
if (optimize)
purge_all_dead_edges (0);
if (optimize && purge_all_dead_edges (0))
delete_unreachable_blocks ();
reg_scan (insns, max_reg_num (), 1);
close_dump_file (DFI_addressof, print_rtl, insns);
@ -3219,7 +3219,7 @@ rest_of_compilation (tree decl)
if (optimize > 0)
rest_of_handle_cse (decl, insns);
rest_of_handle_addresof (decl, insns);
rest_of_handle_addressof (decl, insns);
ggc_collect ();