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| author | jiwang <jiwang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-11-03 17:32:03 +0000 |
|---|---|---|
| committer | jiwang <jiwang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-11-03 17:32:03 +0000 |
| commit | 2276e7e7e2ac6e5051bb2a363c02892b251810a8 (patch) | |
| tree | 7359844c4ff9a95d3137e3267597a68eb1d23f28 /gcc/reg-notes.def | |
| parent | 6df23cf103de2671effb6adaf49348409141b462 (diff) | |
| download | gcc-2276e7e7e2ac6e5051bb2a363c02892b251810a8.tar.gz | |
[DWARF] Enable DW_CFA_VAL_EXPRESSION support
gcc/
* reg-notes.def (CFA_VAL_EXPRESSION): New entry.
* dwarf2cfi.c (dwarf2out_frame_debug_cfa_val_expression): New function.
(dwarf2out_frame_debug): Support REG_CFA_VAL_EXPRESSION.
(output_cfa_loc): Support DW_CFA_val_expression.
(output_cfa_loc_raw): Likewise.
(output_cfi): Likewise.
(output_cfi_directive): Likewise.
* dwarf2out.c (dw_cfi_oprnd1_desc): Support DW_CFA_val_expression.
(dw_cfi_oprnd2_desc): Likewise.
(mem_loc_descriptor): Recognize new pattern generated for value
expression.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241826 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/reg-notes.def')
| -rw-r--r-- | gcc/reg-notes.def | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/reg-notes.def b/gcc/reg-notes.def index 5374169b9a4..962dbb8007e 100644 --- a/gcc/reg-notes.def +++ b/gcc/reg-notes.def @@ -149,6 +149,11 @@ REG_NOTE (CFA_REGISTER) store of a register to an arbitrary (non-validated) memory address. */ REG_NOTE (CFA_EXPRESSION) +/* Attached to insns that are RTX_FRAME_RELATED_P, but are too complex + for FRAME_RELATED_EXPR intuition. The DWARF expression computes the value of + the given register. */ +REG_NOTE (CFA_VAL_EXPRESSION) + /* Attached to insns that are RTX_FRAME_RELATED_P, with the information that this is a restore operation, i.e. will result in DW_CFA_restore or the like. Either the attached rtx, or the destination of the insn's |