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| author | Cyril SIX <cyril.six@kalray.eu> | 2018-06-05 14:56:21 +0200 |
|---|---|---|
| committer | Cyril SIX <cyril.six@kalray.eu> | 2018-06-05 14:56:21 +0200 |
| commit | bcbe036e9b43adcaf2faf10cf32456608b0602c5 (patch) | |
| tree | 280f25b592a7cc2467b71a151ad764a4828deabd /runtime | |
| parent | 48762e6309dc92ac7788a30c0ca1007715fce4db (diff) | |
| download | compcert-kvx-bcbe036e9b43adcaf2faf10cf32456608b0602c5.tar.gz compcert-kvx-bcbe036e9b43adcaf2faf10cf32456608b0602c5.zip | |
MPPA - Changed division to include the builtin
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/mppa_k1c/i64_udivmod.c | 25 |
1 files changed, 2 insertions, 23 deletions
diff --git a/runtime/mppa_k1c/i64_udivmod.c b/runtime/mppa_k1c/i64_udivmod.c index d94d3f23..20d8c976 100644 --- a/runtime/mppa_k1c/i64_udivmod.c +++ b/runtime/mppa_k1c/i64_udivmod.c @@ -26,25 +26,6 @@ udivmoddi4(unsigned long long num, unsigned long long den, int modwanted) #else -/* Number of leading zeroes */ -static int i64_nlzd(unsigned x) -{ - if (x == 0) return 64; - int n = 0; - if (x <= 0x00000000FFFFFFFFl) { n += 32; x <<= 32; } - if (x <= 0x0000FFFFFFFFFFFFl) { n += 16; x <<= 16; } - if (x <= 0x00FFFFFFFFFFFFFFl) { n += 8; x <<= 8; } - if (x <= 0x0FFFFFFFFFFFFFFFl) { n += 4; x <<= 4; } - if (x <= 0x3FFFFFFFFFFFFFFFl) { n += 2; x <<= 2; } - if (x <= 0x7FFFFFFFFFFFFFFFl) { n += 1; x <<= 1; } - return n; -} - -static unsigned long long i64_stsud(unsigned rz, unsigned ry) -{ - return ry >= rz ? ry - rz << 1 | 1 : ry << 1; -} - /* THIS IS THE PREVIOUS VERSION, USED ON BOSTAN AND ANDEY */ unsigned long long udivmoddi4(unsigned long long num, unsigned long long den, int modwanted) @@ -52,8 +33,7 @@ udivmoddi4(unsigned long long num, unsigned long long den, int modwanted) unsigned long long r = num, q = 0; if(den <= r) { - //unsigned k = __builtin_clzll (den) - __builtin_clzll (r); - unsigned k = i64_nlzd(den) - i64_nlzd(r); + unsigned k = __builtin_clzll (den) - __builtin_clzll (r); den = den << k; if(r >= den) { r = r - den; @@ -63,8 +43,7 @@ udivmoddi4(unsigned long long num, unsigned long long den, int modwanted) unsigned i = k; den = den >> 1; do { - r = i64_stsud(den, r); - //r = __builtin_k1_stsud (den, r); + r = __builtin_k1_stsud (den, r); i--; } while (i!= 0); q = q + r; |