From 0ea72a9a91c806471cdbea7064ecb5b2f182cd69 Mon Sep 17 00:00:00 2001 From: Neil Booth Date: Sat, 6 Oct 2007 00:24:48 +0000 Subject: Generalize tcFullMultiply so that the operands can be of differing part widths. Also, return the number of parts actually required to hold the result's value. Remove an over-cautious condition from rounding of float->hex conversion. llvm-svn: 42669 --- llvm/lib/Support/APFloat.cpp | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'llvm/lib/Support/APFloat.cpp') diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp index 3746ae8cfef..34784a0468e 100644 --- a/llvm/lib/Support/APFloat.cpp +++ b/llvm/lib/Support/APFloat.cpp @@ -519,7 +519,7 @@ APFloat::multiplySignificand(const APFloat &rhs, const APFloat *addend) partsCount = partCount(); APInt::tcFullMultiply(fullSignificand, lhsSignificand, - rhs.significandParts(), partsCount); + rhs.significandParts(), partsCount, partsCount); lost_fraction = lfExactlyZero; omsb = APInt::tcMSB(fullSignificand, newPartsCount) + 1; @@ -1795,7 +1795,7 @@ APFloat::convertNormalToHexString(char *dst, unsigned int hexDigits, /* hexDigits of zero means use the required number for the precision. Otherwise, see if we are truncating. If we are, - found out if we need to round away from zero. */ + find out if we need to round away from zero. */ if (hexDigits) { if (hexDigits < outputDigits) { /* We are dropping non-zero bits, so need to check how to round. @@ -1845,7 +1845,8 @@ APFloat::convertNormalToHexString(char *dst, unsigned int hexDigits, do { q--; *q = hexDigitChars[hexDigitValue (*q) + 1]; - } while (*q == '0' && q > p); + } while (*q == '0'); + assert (q >= p); } else { /* Add trailing zeroes. */ memset (dst, '0', outputDigits); -- cgit v1.2.3