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re PR middle-end/36141 (Gcc 4.4 failed to boostrap)

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2008-05-05  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/36141
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Don't create VCE
        for function decls.

2008-05-05  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/36141
        * gcc.c-torture/pr36141.c: New testcase.

From-SVN: r134972
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Andrew Pinski 2008-05-06 03:47:29 +00:00 committed by Andrew Pinski
parent ab1cde2399
commit 1aee3ab6f3
4 changed files with 31 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2008-05-05 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR middle-end/36141
* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Don't create VCE
for function decls.
2008-05-05 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/sse.md (sse2_<plusminus_insn><mode>3): Fix a typo.

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2008-05-05 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR middle-end/36141
* gcc.c-torture/pr36141.c: New testcase.
2008-05-06 Danny Smith <dannysmith@users.sourceforge.net>
* lib/target_supports.exp (check_effective_target_4byte_wchar_t):

17
gcc/testsuite/gcc.c-torture/pr36141.c Normal file
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@ -0,0 +1,17 @@
extern void ffi_closure_unix (void);
ffi_prep_closure_loc (void)
{
struct ia64_fd
{
unsigned long long code_pointer;
unsigned long long gp;
};
struct ffi_ia64_trampoline_struct
{
unsigned long long code_pointer;
};
struct ffi_ia64_trampoline_struct *tramp;
struct ia64_fd *fd;
fd = (struct ia64_fd *)(void *)ffi_closure_unix;
tramp->code_pointer = fd->code_pointer;
}

3
gcc/tree-ssa-forwprop.c
View File

@ -657,6 +657,9 @@ forward_propagate_addr_expr_1 (tree name, tree def_rhs, tree use_stmt,
&& TREE_OPERAND (rhs, 0) == name
&& TYPE_SIZE (TREE_TYPE (rhs))
&& TYPE_SIZE (TREE_TYPE (TREE_OPERAND (def_rhs, 0)))
/* Function decls should not be used for VCE either as it could be
a function descriptor that we want and not the actual function code. */
&& TREE_CODE (TREE_OPERAND (def_rhs, 0)) != FUNCTION_DECL
/* We should not convert volatile loads to non volatile loads. */
&& !TYPE_VOLATILE (TREE_TYPE (rhs))
&& !TYPE_VOLATILE (TREE_TYPE (TREE_OPERAND (def_rhs, 0)))