/usr/src/gcc-4.4/debian/patches/pr44364.diff is in gcc-4.4-source 4.4.7-8ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | # DP: PR target/44364:
# DP: This patch made it into trunk. Not on the 4.4 branch
# DP: because not proved that it is a regression since 4.3.
Index: gcc/caller-save.c
===================================================================
--- a/src/gcc/caller-save.c (revision 160245)
+++ b/src/gcc/caller-save.c (working copy)
@@ -1080,7 +1080,7 @@ insert_restore (struct insn_chain *chain
/* Check that insn to restore REGNO in save_mode[regno] is
correct. */
&& reg_save_code (regno, save_mode[regno]) >= 0)
- mem = adjust_address (mem, save_mode[regno], 0);
+ mem = adjust_address_nv (mem, save_mode[regno], 0);
else
mem = copy_rtx (mem);
@@ -1161,7 +1161,7 @@ insert_save (struct insn_chain *chain, i
/* Check that insn to save REGNO in save_mode[regno] is
correct. */
&& reg_save_code (regno, save_mode[regno]) >= 0)
- mem = adjust_address (mem, save_mode[regno], 0);
+ mem = adjust_address_nv (mem, save_mode[regno], 0);
else
mem = copy_rtx (mem);
Index: gcc/config/rs6000/e500.h
===================================================================
--- a/src/gcc/config/rs6000/e500.h (revision 160245)
+++ b/src/gcc/config/rs6000/e500.h (working copy)
@@ -43,3 +43,10 @@
error ("E500 and FPRs not supported"); \
} \
} while (0)
+
+/* When setting up caller-save slots (MODE == VOIDmode) ensure we
+ allocate space for DFmode. Save gprs in the correct mode too. */
+#define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \
+ (TARGET_E500_DOUBLE && ((MODE) == VOIDmode || (MODE) == DFmode) \
+ ? DFmode \
+ : choose_hard_reg_mode ((REGNO), (NREGS), false))
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