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-rw-r--r--meta-xilinx-bsp/recipes-microblaze/gcc/gcc-8/0011-Patch-microblaze-Fix-the-Microblaze-crash-with-msmal.patch33
1 files changed, 33 insertions, 0 deletions
diff --git a/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-8/0011-Patch-microblaze-Fix-the-Microblaze-crash-with-msmal.patch b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-8/0011-Patch-microblaze-Fix-the-Microblaze-crash-with-msmal.patch
new file mode 100644
index 00000000..2451c938
--- /dev/null
+++ b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-8/0011-Patch-microblaze-Fix-the-Microblaze-crash-with-msmal.patch
@@ -0,0 +1,33 @@
+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
+