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Add shorter defines for endianess checks.

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This commit is contained in:
Mike Pall 2010-11-28 17:22:45 +01:00
parent 24186e05e6
commit 2033d6310b
2 changed files with 6 additions and 5 deletions
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7
src/lj_arch.h
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@ -96,7 +96,6 @@
#define LJ_ARCH_NAME "x86"
#define LJ_ARCH_BITS 32
#define LJ_ARCH_ENDIAN LUAJIT_LE
#define LJ_ARCH_BITENDIAN LUAJIT_LE
#define LJ_ARCH_HASFPU 1
#define LJ_ABI_WIN LJ_TARGET_WINDOWS
#define LJ_TARGET_X86 1
@ -110,7 +109,6 @@
#define LJ_ARCH_NAME "x64"
#define LJ_ARCH_BITS 64
#define LJ_ARCH_ENDIAN LUAJIT_LE
#define LJ_ARCH_BITENDIAN LUAJIT_LE
#define LJ_ARCH_HASFPU 1
#define LJ_ABI_WIN LJ_TARGET_WINDOWS
#define LJ_TARGET_X64 1
@ -128,7 +126,6 @@
#define LJ_ARCH_NAME "ppcspe"
#define LJ_ARCH_BITS 32
#define LJ_ARCH_ENDIAN LUAJIT_BE
#define LJ_ARCH_BITENDIAN LUAJIT_BE
#define LJ_ARCH_HASFPU 1
#define LJ_ABI_SOFTFP 1
#define LJ_ABI_EABI 1
@ -187,9 +184,13 @@
#endif
#if LJ_ARCH_ENDIAN == LUAJIT_BE
#define LJ_LE 0
#define LJ_BE 1
#define LJ_ENDIAN_SELECT(le, be) be
#define LJ_ENDIAN_LOHI(lo, hi) hi lo
#else
#define LJ_LE 1
#define LJ_BE 0
#define LJ_ENDIAN_SELECT(le, be) le
#define LJ_ENDIAN_LOHI(lo, hi) lo hi
#endif

4
src/lj_str.c
View File

@ -29,7 +29,7 @@ int32_t LJ_FASTCALL lj_str_cmp(GCstr *a, GCstr *b)
uint32_t va = *(const uint32_t *)(strdata(a)+i);
uint32_t vb = *(const uint32_t *)(strdata(b)+i);
if (va != vb) {
#if LJ_ARCH_ENDIAN == LUAJIT_LE
#if LJ_LE
va = lj_bswap(va); vb = lj_bswap(vb);
#endif
i -= n;
@ -53,7 +53,7 @@ static LJ_AINLINE int str_fastcmp(const char *a, const char *b, MSize len)
uint32_t v = *(const uint32_t *)(a+i) ^ *(const uint32_t *)(b+i);
if (v) {
i -= len;
#if LJ_ARCH_ENDIAN == LUAJIT_LE
#if LJ_LE
return (int32_t)i >= -3 ? (v << (32+(i<<3))) : 1;
#else
return (int32_t)i >= -3 ? (v >> (32+(i<<3))) : 1;