gcc.dg/pr27531-1.c was failing with rtl checking enabled for -mips16 -mabi=32
on mips64-linux-gnu. The problem was that mips_adjust_insn_length didn't cope
properly with the new(ish) JUMP_TABLE_DATA rtx, which has no insn code.
Tested on mips64-linux-gnu and applied.
Richard
gcc/
* config/mips/mips.c (mips_adjust_insn_length): Add checks for
JUMP_P and INSN_P.
Index: gcc/config/mips/mips.c
===================================================================
--- gcc/config/mips/mips.c 2013-08-13 08:57:15.711421748 +0100
+++ gcc/config/mips/mips.c 2013-08-18 21:00:01.382816765 +0100
@@ -12297,6 +12297,7 @@ mips_adjust_insn_length (rtx insn, int l
/* mips.md uses MAX_PIC_BRANCH_LENGTH as a placeholder for the length
of a PIC long-branch sequence. Substitute the correct value. */
if (length == MAX_PIC_BRANCH_LENGTH
+ && JUMP_P (insn)
&& INSN_CODE (insn) >= 0
&& get_attr_type (insn) == TYPE_BRANCH)
{
@@ -12318,7 +12319,9 @@ mips_adjust_insn_length (rtx insn, int l
length += TARGET_MIPS16 ? 2 : 4;
/* See how many nops might be needed to avoid hardware hazards. */
- if (!cfun->machine->ignore_hazard_length_p && INSN_CODE (insn) >= 0)
+ if (!cfun->machine->ignore_hazard_length_p
+ && INSN_P (insn)
+ && INSN_CODE (insn) >= 0)
switch (get_attr_hazard (insn))
{
case HAZARD_NONE:
