From 664c19ad5ef16f3463087a33ecfe5d5ac24f81ec Mon Sep 17 00:00:00 2001 From: seyko Date: Wed, 4 Mar 2015 16:25:51 +0300 Subject: partial revert of the commit 4ad186c5ef61 A test program: /* result of the new version inroduced in 4ad186c5ef61: t2a = 44100312 */ #include int main() { int t1 = 176401255; float f = 0.25f; int t2a = (int)(t1 * f); // must be 44100313 int t2b = (int)(t1 * (float)0.25f); printf("t2a=%d t2b=%d \n",t2a,t2b); return 0; } --- lib/libtcc1.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'lib/libtcc1.c') diff --git a/lib/libtcc1.c b/lib/libtcc1.c index d8a5e71..4a923a2 100644 --- a/lib/libtcc1.c +++ b/lib/libtcc1.c @@ -480,6 +480,20 @@ long long __ashldi3(long long a, int b) #endif } +#ifndef COMMIT_4ad186c5ef61_IS_FIXED +long long __tcc_cvt_ftol(long double x) +{ + unsigned c0, c1; + long long ret; + __asm__ __volatile__ ("fnstcw %0" : "=m" (c0)); + c1 = c0 | 0x0C00; + __asm__ __volatile__ ("fldcw %0" : : "m" (c1)); + __asm__ __volatile__ ("fistpll %0" : "=m" (ret)); + __asm__ __volatile__ ("fldcw %0" : : "m" (c0)); + return ret; +} +#endif + #endif /* !__x86_64__ */ /* XXX: fix tcc's code generator to do this instead */ -- cgit v1.3.1