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Restore tail call optimization subversion.

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Restore the essence of 898960247a, which
sabotages tail call optimization.  This is necessary even when the
mutually recursive functions are in separate compilation units.
This commit is contained in:
Jason Evans 2014-02-25 16:11:15 -08:00
parent 940fdfd5ee
commit b037a55f36
1 changed files with 13 additions and 7 deletions
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20
test/unit/prof_accum.h
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@ -14,16 +14,22 @@ alloc_n_proto(1)
void * \
alloc_##n(unsigned bits) \
{ \
void *p; \
\
if (bits == 0) { \
void *p = mallocx(1, 0); \
assert_ptr_not_null(p, "Unexpected mallocx() failure"); \
return (p); \
} else { \
if (bits == 0) \
p = mallocx(1, 0); \
else { \
switch (bits & 0x1U) { \
case 0: return (alloc_0(bits >> 1)); \
case 1: return (alloc_1(bits >> 1)); \
case 0: \
p = (alloc_0(bits >> 1)); \
break; \
case 1: \
p = (alloc_1(bits >> 1)); \
break; \
default: not_reached(); \
} \
} \
/* Intentionally sabotage tail call optimization. */ \
assert_ptr_not_null(p, "Unexpected mallocx() failure"); \
return (p); \
}