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Fix APInt::operator*= so that it computes the correct result for large integers where there is unsigned overflow. Fix APFloat::toString so that it doesn't depend on the incorrect behavior in common cases (and computes the correct result in some rare cases). Fixes PR11086.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141441 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman
2011-10-07 23:40:49 +00:00
parent d2fdb4a285
commit 9eb6b4d91b
3 changed files with 12 additions and 2 deletions
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9
unittests/ADT/APIntTest.cpp
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@@ -441,4 +441,13 @@ TEST(APIntTest, StringDeath) {
#endif
#endif
TEST(APIntTest, mul_clear) {
APInt ValA(65, -1ULL);
APInt ValB(65, 4);
APInt ValC(65, 0);
ValC = ValA * ValB;
ValA *= ValB;
EXPECT_EQ(ValA.toString(10, false), ValC.toString(10, false));
}
}