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| author | Geoffrey Keating <geoffk@apple.com> | 2004-09-10 18:52:41 +0000 |
|---|---|---|
| committer | Geoffrey Keating <geoffk@apple.com> | 2004-09-10 18:52:41 +0000 |
| commit | 8a092fda86d3b826269e073021ab1de0b0fb7350 (patch) | |
| tree | fef5c283b613b5e20aa87832379f06b4b37788ac /gcc/rtl.def | |
| parent | 04317c0d06afeb5e99f2e5ed9ffd3a67d2046d72 (diff) | |
* rtl.def (REG): Add comment to describe third field.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@87312 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/rtl.def')
| -rw-r--r-- | gcc/rtl.def | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/rtl.def b/gcc/rtl.def index 4c678dbb67e..61cb811fc22 100644 --- a/gcc/rtl.def +++ b/gcc/rtl.def @@ -338,7 +338,8 @@ DEF_RTL_EXPR(VALUE, "value", "0", RTX_OBJ) the REGNO macro. If this number is less than FIRST_PSEUDO_REGISTER than a hardware register is being referred to. The second operand holds the original register number - this will be different for a - pseudo register that got turned into a hard register. + pseudo register that got turned into a hard register. The third + operand points to a reg_attrs structure. This rtx needs to have as many (or more) fields as a MEM, since we can change REG rtx's into MEMs during reload. */ DEF_RTL_EXPR(REG, "reg", "i00", RTX_OBJ) |