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 @@ +From 1a9dcdb578452ecd53e0aec65fe6279233218778 Mon Sep 17 00:00:00 2001 +From: Mahesh Bodapati <mbodapat@xilinx.com> +Date: Sat, 26 Aug 2017 19:21:26 -0700 +Subject: [PATCH] Fix the Microblaze crash with msmall-divides flag + +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 <nagaraju.mekala@xilinx.com> +Signed-off-by: Mahesh Bodapati <mbodapat@xilinx.com> +Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com> +Upstream-Status: Pending +--- + 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 bba6983b65..15080db539 100644 +--- a/gcc/config/microblaze/microblaze.c ++++ b/gcc/config/microblaze/microblaze.c +@@ -3527,8 +3527,7 @@ 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; +-- +2.14.2 + |