diff options
Diffstat (limited to 'lib/Support/APFloat.cpp')
| -rw-r--r-- | lib/Support/APFloat.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp index 30f0deab90a0..4cfbbf8645e0 100644 --- a/lib/Support/APFloat.cpp +++ b/lib/Support/APFloat.cpp @@ -76,8 +76,12 @@ namespace llvm { compile-time arithmetic on PPC double-double numbers, it is not able to represent all possible values held by a PPC double-double number, for example: (long double) 1.0 + (long double) 0x1p-106 - Should this be replaced by a full emulation of PPC double-double? */ - static const fltSemantics semPPCDoubleDouble = {0, 0, 0, 0}; + Should this be replaced by a full emulation of PPC double-double? + + Note: we need to make the value different from semBogus as otherwise + an unsafe optimization may collapse both values to a single address, + and we heavily rely on them having distinct addresses. */ + static const fltSemantics semPPCDoubleDouble = {-1, 0, 0, 0}; /* There are temporary semantics for the real PPCDoubleDouble implementation. Currently, APFloat of PPCDoubleDouble holds one PPCDoubleDoubleImpl as the |