[PATCH] cipher: Fix SM3 avx/bmi2 compilation error

[Tianjia Zhang]

* cipher/sm3-avx-bmi2-amd64.S: Fix assembler errors.

--

There are a lot of the following errors compiling with GNU assembler
version 2.27-41:

  sm3-avx-bmi2-amd64.S: Assembler messages:
  sm3-avx-bmi2-amd64.S:402: Error: 0xf3988a32 out range of signed
    32bit displacement

The newer GNU assembler does not have this issue. It is likely that
the old version of the assembler did not handle it well, but in order
to allow libgcrypt to be compiled on more systems, I still fixed this
problem, an additional add operation is added to the lea instruction
to calculate the sum of three elements. I did a benchmark test on an
Intel i5-6200U 2.30GHz CPU and found no significant performance
difference.

Signed-off-by: Tianjia Zhang <tianjia.zhang at linux.alibaba.com>
---
 cipher/sm3-avx-bmi2-amd64.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cipher/sm3-avx-bmi2-amd64.S b/cipher/sm3-avx-bmi2-amd64.S
index 93aecacb..4a075d76 100644
--- a/cipher/sm3-avx-bmi2-amd64.S
+++ b/cipher/sm3-avx-bmi2-amd64.S
@@ -206,7 +206,8 @@ ELF(.size _gcry_sm3_avx2_consts,.-_gcry_sm3_avx2_consts)
         /* rol(a, 12) => t0 */ \
           roll3mov(12, a, t0); /* rorxl here would reduce perf by 6% on zen3 */ \
         /* rol (t0 + e + t), 7) => t1 */ \
-          leal K##round(t0, e, 1), t1; \
+          addl3(t0, e, t1); \
+          addl $K##round, t1; \
           roll2(7, t1); \
         /* h + w1 => h */ \
           addl wtype##_W1_ADDR(round, widx), h; \
-- 
2.19.1.3.ge56e4f7