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| author | Richard Henderson <rth@redhat.com> | 2011-06-30 14:04:23 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2011-06-30 14:04:23 -0700 |
| commit | ef284364b4fb287a01cfcbabab5c5e60e36c83a5 (patch) | |
| tree | 2f2309df014d81d43d533530f0492a97a39bc755 /gcc/reg-notes.def | |
| parent | c8412f9770056dff19e3470901193784c7764bcf (diff) | |
| download | gcc-ef284364b4fb287a01cfcbabab5c5e60e36c83a5.tar.gz | |
dwarf2out: Add REG_CFA_FLUSH_QUEUE.
* reg-notes.def (REG_CFA_FLUSH_QUEUE): New.
* dwarf2out.c (dwarf2out_frame_debug): Handle it.
* final.c (final_scan_insn): Look for it, and invoke
dwarf2out_frame_debug before the insn if found.
From-SVN: r175729
Diffstat (limited to 'gcc/reg-notes.def')
| -rw-r--r-- | gcc/reg-notes.def | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gcc/reg-notes.def b/gcc/reg-notes.def index 9924355f772..eccac9e9d70 100644 --- a/gcc/reg-notes.def +++ b/gcc/reg-notes.def @@ -155,16 +155,23 @@ REG_NOTE (CFA_EXPRESSION) first pattern is the register to be restored. */ REG_NOTE (CFA_RESTORE) -/* Attached to insn that is RTX_FRAME_RELATED_P, marks insn that sets +/* Attached to insns that are RTX_FRAME_RELATED_P, marks insn that sets vDRAP from DRAP. If vDRAP is a register, vdrap_reg is initalized to the argument, if it is a MEM, it is ignored. */ REG_NOTE (CFA_SET_VDRAP) -/* Attached to insn that are RTX_FRAME_RELATED_P, indicating a window +/* Attached to insns that are RTX_FRAME_RELATED_P, indicating a window save operation, i.e. will result in a DW_CFA_GNU_window_save. The argument is ignored. */ REG_NOTE (CFA_WINDOW_SAVE) +/* Attached to insns that are RTX_FRAME_RELATED_P, marks the insn as + requiring that all queued information should be flushed *before* insn, + regardless of what is visible in the rtl. The argument is ignored. + This is normally used for a call instruction which is not exposed to + the rest of the compiler as a CALL_INSN. */ +REG_NOTE (CFA_FLUSH_QUEUE) + /* Indicates that REG holds the exception context for the function. This context is shared by inline functions, so the code to acquire the real exception context is delayed until after inlining. */ |