Ok, there was a need for OPENSSL_cleanse() instead of bzero() to prevent

supposedly smart compilers from optimizing memory cleanups away. Understood.

Ok, in case of an hypothetically super smart compiler, OPENSSL_cleanse() had
to be convoluted enough for the compiler not to recognize that this was
actually bzero() in disguise. Understood.

But then why there had been optimized assembler versions of OPENSSL_cleanse()
is beyond me. Did someone not trust the C obfuscation?

1 files changed, 0 insertions, 39 deletions

diff --git a/src/lib/libcrypto/ia64cpuid.S b/src/lib/libcrypto/ia64cpuid.S
index 7832b9b640..517d938888 100644
--- a/src/lib/libcrypto/ia64cpuid.S
+++ b/src/lib/libcrypto/ia64cpuid.S
@@ -126,42 +126,3 @@ OPENSSL_wipe_cpu:
         mov             ar.lc=r3
         br.ret.sptk     b0              };;
 .endp   OPENSSL_wipe_cpu#
-
-.global OPENSSL_cleanse#
-.proc   OPENSSL_cleanse#
-OPENSSL_cleanse:
-{ .mib; cmp.eq          p6,p0=0,r33         // len==0
-#if defined(_HPUX_SOURCE) && !defined(_LP64)
-        addp4           r32=0,r32
-#endif
-(p6)    br.ret.spnt     b0              };;
-{ .mib; and             r2=7,r32
-        cmp.leu         p6,p0=15,r33        // len>=15
-(p6)    br.cond.dptk    .Lot            };;
-
-.Little:
-{ .mib; st1             [r32]=r0,1
-        cmp.ltu         p6,p7=1,r33     }  // len>1
-{ .mbb; add             r33=-1,r33         // len--
-(p6)    br.cond.dptk    .Little
-(p7)    br.ret.sptk.many        b0      };;
-
-.Lot:
-{ .mib; cmp.eq          p6,p0=0,r2
-(p6)    br.cond.dptk    .Laligned       };;
-{ .mmi; st1             [r32]=r0,1;;
-        and             r2=7,r32        }
-{ .mib; add             r33=-1,r33
-        br              .Lot            };;
-
-.Laligned:
-{ .mmi; st8             [r32]=r0,8
-        and             r2=-8,r33           // len&~7
-        add             r33=-8,r33      };; // len-=8
-{ .mib; cmp.ltu         p6,p0=8,r2          // ((len+8)&~7)>8
-(p6)    br.cond.dptk    .Laligned       };;
-
-{ .mbb; cmp.eq          p6,p7=r0,r33
-(p7)    br.cond.dpnt    .Little
-(p6)    br.ret.sptk.many        b0      };;
-.endp   OPENSSL_cleanse#