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[ruby/bigdecimal] Avoid RB_GC_GUARD(a) = b in bigdecimal

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* This is not supported on TruffleRuby, which requires the value to be
  set before RB_GC_GUARD() is called.
* See https://github.com/oracle/truffleruby/pull/2879

https://github.com/ruby/bigdecimal/commit/7b2957922f
This commit is contained in:
Benoit Daloze 2023-02-21 14:12:51 +01:00 committed by git
parent 93ac7405b8
commit 5077cc2be6
1 changed files with 12 additions and 6 deletions
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18
ext/bigdecimal/bigdecimal.c
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@ -4142,11 +4142,14 @@ get_vp_value:
} }
x = VpCheckGetValue(vx); x = VpCheckGetValue(vx);
RB_GC_GUARD(one) = VpCheckGetValue(NewOneWrapLimited(1, 1)); one = VpCheckGetValue(NewOneWrapLimited(1, 1));
RB_GC_GUARD(two) = VpCheckGetValue(VpCreateRbObject(1, "2", true)); two = VpCheckGetValue(VpCreateRbObject(1, "2", true));
RB_GC_GUARD(one);
RB_GC_GUARD(two);
n = prec + BIGDECIMAL_DOUBLE_FIGURES; n = prec + BIGDECIMAL_DOUBLE_FIGURES;
RB_GC_GUARD(vn) = SSIZET2NUM(n); vn = SSIZET2NUM(n);
RB_GC_GUARD(vn);
expo = VpExponent10(vx); expo = VpExponent10(vx);
if (expo < 0 || expo >= 3) { if (expo < 0 || expo >= 3) {
char buf[DECIMAL_SIZE_OF_BITS(SIZEOF_VALUE * CHAR_BIT) + 4]; char buf[DECIMAL_SIZE_OF_BITS(SIZEOF_VALUE * CHAR_BIT) + 4];
@ -4158,9 +4161,12 @@ get_vp_value:
} }
w = BigDecimal_sub(x, one); w = BigDecimal_sub(x, one);
x = BigDecimal_div2(w, BigDecimal_add(x, one), vn); x = BigDecimal_div2(w, BigDecimal_add(x, one), vn);
RB_GC_GUARD(x2) = BigDecimal_mult2(x, x, vn); x2 = BigDecimal_mult2(x, x, vn);
RB_GC_GUARD(y) = x; y = x;
RB_GC_GUARD(d) = y; d = y;
RB_GC_GUARD(x2);
RB_GC_GUARD(y);
RB_GC_GUARD(d);
i = 1; i = 1;
while (!VpIsZero((Real*)DATA_PTR(d))) { while (!VpIsZero((Real*)DATA_PTR(d))) {
SIGNED_VALUE const ey = VpExponent10(DATA_PTR(y)); SIGNED_VALUE const ey = VpExponent10(DATA_PTR(y));