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md32_common.h: modify MD32_REG_T pre-processing logic [triggered by clang].

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This commit is contained in:
Andy Polyakov 2010-08-02 09:32:26 +00:00
parent 2948fbab3a
commit 30ab7af242
1 changed files with 11 additions and 4 deletions
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15
crypto/md32_common.h
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@ -165,7 +165,7 @@
asm ( \
"roll %1,%0" \
: "=r"(ret) \
: "I"(n), "0"(a) \
: "I"(n), "0"((unsigned int)(a)) \
: "cc"); \
ret; \
})
@ -383,6 +383,7 @@ int HASH_FINAL (unsigned char *md, HASH_CTX *c)
}
#ifndef MD32_REG_T
#if defined(__alpha) || defined(__sparcv9) || defined(__mips)
#define MD32_REG_T long
/*
* This comment was originaly written for MD5, which is why it
@ -400,9 +401,15 @@ int HASH_FINAL (unsigned char *md, HASH_CTX *c)
* Well, to be honest it should say that this *prevents*
* performance degradation.
* <appro@fy.chalmers.se>
* Apparently there're LP64 compilers that generate better
* code if A-D are declared int. Most notably GCC-x86_64
* generates better code.
*/
#else
/*
* Above is not absolute and there are LP64 compilers that
* generate better code if MD32_REG_T is defined int. The above
* pre-processor condition reflects the circumstances under which
* the conclusion was made and is subject to further extension.
* <appro@fy.chalmers.se>
*/
#define MD32_REG_T int
#endif
#endif