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authorChris Lattner <sabre@nondot.org>2006-07-14 04:07:29 +0000
committerChris Lattner <sabre@nondot.org>2006-07-14 04:07:29 +0000
commit1eeedaea59c7d6d9f231989c81013c2c0ea10d2a (patch)
tree9c45bdacd96879ce9e77c927015cf211f99b0269 /lib/Target/PowerPC/README.txt
parentf4392da385ddea8f572983eddb49844190feacfc (diff)
Add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29139 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/README.txt')
-rw-r--r--lib/Target/PowerPC/README.txt9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt
index ffe979c603..2c99e02e4e 100644
--- a/lib/Target/PowerPC/README.txt
+++ b/lib/Target/PowerPC/README.txt
@@ -530,3 +530,12 @@ _foo:
or r2, r2, r4
stw r2, 0(r3)
blr
+
+===-------------------------------------------------------------------------===
+
+On PPC64, this results in a truncate followed by a truncstore. These should
+be folded together.
+
+unsigned short G;
+void foo(unsigned long H) { G = H; }
+