| From 658476aef537c0c2d031eb1c7a001f00c1d9bf7b Mon Sep 17 00:00:00 2001 |
| From: Mahesh Bodapati <mbodapat@xilinx.com> |
| Date: Thu, 12 Jan 2017 16:50:17 +0530 |
| Subject: [PATCH 11/54] [Patch, microblaze]: Fix the Microblaze crash with |
| msmall-divides flag Compiler is crashing when we use msmall-divides and |
| mxl-barrel-shift flag. This is because when use above flags |
| microblaze_expand_divide function will be called for division operation. In |
| microblaze_expand_divide function we are using sub_reg but MicroBlaze doesn't |
| have subreg register due to this compiler was crashing. Changed the logic to |
| avoid sub_reg call |
| |
| Signed-off-by:Nagaraju Mekala <nmekala@xilix.com> |
| --- |
| gcc/config/microblaze/microblaze.c | 3 +-- |
| 1 file changed, 1 insertion(+), 2 deletions(-) |
| |
| diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c |
| index 9a4a287..cbe8cb7 100644 |
| --- a/gcc/config/microblaze/microblaze.c |
| +++ b/gcc/config/microblaze/microblaze.c |
| @@ -3575,8 +3575,7 @@ microblaze_expand_divide (rtx operands[]) |
| mem_rtx = gen_rtx_MEM (QImode, |
| gen_rtx_PLUS (Pmode, regt1, div_table_rtx)); |
| |
| - insn = emit_insn (gen_movqi (regqi, mem_rtx)); |
| - insn = emit_insn (gen_movsi (operands[0], gen_rtx_SUBREG (SImode, regqi, 0))); |
| + insn = emit_insn (gen_zero_extendqisi2(operands[0],mem_rtx)); |
| jump = emit_jump_insn_after (gen_jump (div_end_label), insn); |
| JUMP_LABEL (jump) = div_end_label; |
| LABEL_NUSES (div_end_label) = 1; |
| -- |
| 2.7.4 |
| |