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authorChris Lattner <sabre@nondot.org>2009-10-21 01:10:37 +0000
committerChris Lattner <sabre@nondot.org>2009-10-21 01:10:37 +0000
commit7d26443bb7998169f6a7f6953dbe4d461907872f (patch)
treeac43d397a09f6b9e3fcc4d9c6e8200d132fba30e /lib/Target/README.txt
parentce1379f72cd60b503f629f734ccf3372707b9ee4 (diff)
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IPSCCP is missing stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84725 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/README.txt')
-rw-r--r--lib/Target/README.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/README.txt b/lib/Target/README.txt
index 89ea9d0afc..aec8fd0505 100644
--- a/lib/Target/README.txt
+++ b/lib/Target/README.txt
@@ -1644,3 +1644,10 @@ Instcombine should be able to optimize away the loads (and thus the globals).
See also PR4973
//===---------------------------------------------------------------------===//
+
+IPSCCP is propagating elements of first class aggregates, but is not propagating
+the entire aggregate itself. This leads it to miss opportunities, for example
+in test/Transforms/SCCP/ipsccp-basic.ll:test5b.
+
+//===---------------------------------------------------------------------===//
+