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IPSCCP is missing stuff.
author
Chris Lattner
<sabre@nondot.org>
Wed, 21 Oct 2009 01:10:37 +0000
(
01:10
+0000)
committer
Chris Lattner
<sabre@nondot.org>
Wed, 21 Oct 2009 01:10:37 +0000
(
01:10
+0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84725
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Target/README.txt
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diff --git
a/lib/Target/README.txt
b/lib/Target/README.txt
index
89ea9d0
..
aec8fd0
100644
(file)
--- 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.
+
+//===---------------------------------------------------------------------===//
+