diff options
Diffstat (limited to 'meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0012-Fix-the-Microblaze-crash-with-msmall-divides-flag.patch')
-rw-r--r-- | meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0012-Fix-the-Microblaze-crash-with-msmall-divides-flag.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0012-Fix-the-Microblaze-crash-with-msmall-divides-flag.patch b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0012-Fix-the-Microblaze-crash-with-msmall-divides-flag.patch new file mode 100644 index 00000000..464f59e3 --- /dev/null +++ b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0012-Fix-the-Microblaze-crash-with-msmall-divides-flag.patch | |||
@@ -0,0 +1,37 @@ | |||
1 | From 1a9dcdb578452ecd53e0aec65fe6279233218778 Mon Sep 17 00:00:00 2001 | ||
2 | From: Mahesh Bodapati <mbodapat@xilinx.com> | ||
3 | Date: Sat, 26 Aug 2017 19:21:26 -0700 | ||
4 | Subject: [PATCH] Fix the Microblaze crash with msmall-divides flag | ||
5 | |||
6 | Fix the Microblaze crash with msmall-divides flag Compiler is crashing | ||
7 | when we use msmall-divides and mxl-barrel-shift flag. This is because | ||
8 | when use above flags microblaze_expand_divide function will be called | ||
9 | for division operation. In microblaze_expand_divide function we are | ||
10 | using sub_reg but MicroBlaze doesn't have subreg register due to this | ||
11 | compiler was crashing. Changed the logic to avoid sub_reg call | ||
12 | |||
13 | Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com> | ||
14 | Signed-off-by: Mahesh Bodapati <mbodapat@xilinx.com> | ||
15 | Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com> | ||
16 | Upstream-Status: Pending | ||
17 | --- | ||
18 | gcc/config/microblaze/microblaze.c | 3 +-- | ||
19 | 1 file changed, 1 insertion(+), 2 deletions(-) | ||
20 | |||
21 | diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c | ||
22 | index bba6983b65..15080db539 100644 | ||
23 | --- a/gcc/config/microblaze/microblaze.c | ||
24 | +++ b/gcc/config/microblaze/microblaze.c | ||
25 | @@ -3527,8 +3527,7 @@ microblaze_expand_divide (rtx operands[]) | ||
26 | mem_rtx = gen_rtx_MEM (QImode, | ||
27 | gen_rtx_PLUS (Pmode, regt1, div_table_rtx)); | ||
28 | |||
29 | - insn = emit_insn (gen_movqi (regqi, mem_rtx)); | ||
30 | - insn = emit_insn (gen_movsi (operands[0], gen_rtx_SUBREG (SImode, regqi, 0))); | ||
31 | + insn = emit_insn (gen_zero_extendqisi2(operands[0],mem_rtx)); | ||
32 | jump = emit_jump_insn_after (gen_jump (div_end_label), insn); | ||
33 | JUMP_LABEL (jump) = div_end_label; | ||
34 | LABEL_NUSES (div_end_label) = 1; | ||
35 | -- | ||
36 | 2.14.2 | ||
37 | |||