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authorEli Friedman <eli.friedman@gmail.com>2009-04-13 21:47:26 +0000
committerEli Friedman <eli.friedman@gmail.com>2009-04-13 21:47:26 +0000
commit0f59312e7b625fa5821a63db65377d4b3b667e99 (patch)
tree8e41750fd4d4d1889dc297d609aac1c5b5dea200 /lib/CodeGen/CGExprAgg.cpp
parent8a3e0b1b8222d52df3d42ca345dc48f991e1908a (diff)
Minor work related to removing the assumption that value initialization
implies an all-zero bit pattern. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68994 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGExprAgg.cpp')
-rw-r--r--lib/CodeGen/CGExprAgg.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/CGExprAgg.cpp b/lib/CodeGen/CGExprAgg.cpp
index 3b1580cc13..acca396c0b 100644
--- a/lib/CodeGen/CGExprAgg.cpp
+++ b/lib/CodeGen/CGExprAgg.cpp
@@ -312,6 +312,7 @@ void AggExprEmitter::EmitNullInitializationToLValue(LValue LV, QualType T) {
// Otherwise, just memset the whole thing to zero. This is legal
// because in LLVM, all default initializers are guaranteed to have a
// bit pattern of all zeros.
+ // FIXME: That isn't true for member pointers!
// There's a potential optimization opportunity in combining
// memsets; that would be easy for arrays, but relatively
// difficult for structures with the current code.