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| author | Franz Sirl <Franz.Sirl-kernel@lauterbach.com> | 2001-05-13 21:16:58 +0000 |
|---|---|---|
| committer | Franz Sirl <sirl@gcc.gnu.org> | 2001-05-13 21:16:58 +0000 |
| commit | ff0b6b992118d179779efac155b3484d32a1cf0d (patch) | |
| tree | 944e76343c8f93f43eedc9b683710ba03f0a6739 /gcc/rtl.h | |
| parent | 6f22140248a891c4cdf46679cc9597f15107c5f3 (diff) | |
| download | gcc-ff0b6b992118d179779efac155b3484d32a1cf0d.zip gcc-ff0b6b992118d179779efac155b3484d32a1cf0d.tar.gz gcc-ff0b6b992118d179779efac155b3484d32a1cf0d.tar.bz2 | |
rtl.h (SYMBOL_REF_WEAK): New macro.
2001-05-13 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
* rtl.h (SYMBOL_REF_WEAK): New macro.
* rtlanal.h (rtx_addr_can_trap): Use it, a weak SYMBOL_REF can trap.
* varasm.c (make_decl_rtl): Mark SYMBOL_REF weak if necessary.
* rtl.texi (SYMBOL_REF_WEAK): Document it.
* gcc.texi: Remove wrong description.
From-SVN: r42046
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 6 |
1 files changed, 5 insertions, 1 deletions
@@ -162,7 +162,8 @@ typedef struct rtx_def unsigned int used : 1; /* Nonzero if this rtx came from procedure integration. In a REG, nonzero means this reg refers to the return value - of the current function. */ + of the current function. + 1 in a SYMBOL_REF if the symbol is weak. */ unsigned integrated : 1; /* 1 in an INSN or a SET if this rtx is related to the call frame, either changing how we compute the frame address or saving and @@ -934,6 +935,9 @@ extern unsigned int subreg_regno PARAMS ((rtx)); /* 1 means a SYMBOL_REF has been the library function in emit_library_call. */ #define SYMBOL_REF_USED(RTX) ((RTX)->used) +/* 1 means a SYMBOL_REF is weak. */ +#define SYMBOL_REF_WEAK(RTX) ((RTX)->integrated) + /* Define a macro to look for REG_INC notes, but save time on machines where they never exist. */ |