Finally, what I personally need, the MIPS parts.
Thanks,
Chung-Lin
* config/mips/mips.c (mips_get_tp): Add 'target' parameter for
generating to specific reg.
(mips_legitimize_tls_address): Update calls to mips_get_tp().
(mips_expand_builtin_thread_pointer): Add hook function for
TARGET_EXPAND_BUILTIN_THREAD_POINTER.
Index: config/mips/mips.c
===================================================================
--- config/mips/mips.c (revision 189431)
+++ config/mips/mips.c (working copy)
@@ -2851,11 +2851,12 @@ mips_call_tls_get_addr (rtx sym, enum mips_symbol_
/* Return a pseudo register that contains the current thread pointer. */
static rtx
-mips_get_tp (void)
+mips_get_tp (rtx target)
{
- rtx tp, fn;
+ rtx fn;
+ rtx tp = (target != NULL_RTX && REG_P (target)
+ ? target : gen_reg_rtx (Pmode));
- tp = gen_reg_rtx (Pmode);
if (TARGET_MIPS16)
{
mips_need_mips16_rdhwr_p = true;
@@ -2919,7 +2920,7 @@ mips_legitimize_tls_address (rtx loc)
break;
case TLS_MODEL_INITIAL_EXEC:
- tp = mips_get_tp ();
+ tp = mips_get_tp (NULL_RTX);
tmp1 = gen_reg_rtx (Pmode);
tmp2 = mips_unspec_address (loc, SYMBOL_GOTTPREL);
if (Pmode == DImode)
@@ -2931,7 +2932,7 @@ mips_legitimize_tls_address (rtx loc)
break;
case TLS_MODEL_LOCAL_EXEC:
- tmp1 = mips_get_tp ();
+ tmp1 = mips_get_tp (NULL_RTX);
offset = mips_unspec_address (loc, SYMBOL_TPREL);
if (mips_split_p[SYMBOL_TPREL])
{
@@ -13884,6 +13885,13 @@ mips_expand_builtin (tree exp, rtx target, rtx sub
}
gcc_unreachable ();
}
+
+static rtx
+mips_expand_builtin_thread_pointer (rtx target)
+{
+ return mips_get_tp (target);
+}
+
/* An entry in the MIPS16 constant pool. VALUE is the pool constant,
MODE is its mode, and LABEL is the CODE_LABEL associated with it. */
@@ -17567,6 +17575,10 @@ mips_expand_vec_minmax (rtx target, rtx op0, rtx o
#undef TARGET_EXPAND_BUILTIN
#define TARGET_EXPAND_BUILTIN mips_expand_builtin
+#undef TARGET_EXPAND_BUILTIN_THREAD_POINTER
+#define TARGET_EXPAND_BUILTIN_THREAD_POINTER \
+ mips_expand_builtin_thread_pointer
+
#undef TARGET_HAVE_TLS
#define TARGET_HAVE_TLS HAVE_AS_TLS
