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authorDuncan Sands <baldrick@free.fr>2012-07-12 09:01:35 +0000
committerDuncan Sands <baldrick@free.fr>2012-07-12 09:01:35 +0000
commit4e8982a34da69effe23ce9c553680b19d7d57551 (patch)
treec93a35ee3de09a8e9fbbefc4d0e9fb77339dc1d6 /test
parent5aba78bd8056dc407bcbce4080ffcd12b13c7342 (diff)
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The result type of EXTRACT_VECTOR_ELT doesn't have to match the element type of
the input vector, it can be bigger (this is helpful for powerpc where <2 x i16> is a legal vector type but i16 isn't a legal type, IIRC). However this wasn't being taken into account by ExpandRes_EXTRACT_VECTOR_ELT, causing PR13220. Lightly tweaked version of a patch by Michael Liao. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160116 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r--test/CodeGen/X86/pr13220.ll20
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pr13220.ll b/test/CodeGen/X86/pr13220.ll
new file mode 100644
index 0000000000..aed6957c80
--- /dev/null
+++ b/test/CodeGen/X86/pr13220.ll
@@ -0,0 +1,20 @@
+; RUN: llc < %s
+; PR13220
+
+define <8 x i32> @foo(<8 x i96> %x) {
+ %a = lshr <8 x i96> %x, <i96 1, i96 1, i96 1, i96 1, i96 1, i96 1, i96 1, i96 1>
+ %b = trunc <8 x i96> %a to <8 x i32>
+ ret <8 x i32> %b
+}
+
+define <8 x i32> @bar(<8 x i97> %x) {
+ %a = lshr <8 x i97> %x, <i97 1, i97 1, i97 1, i97 1, i97 1, i97 1, i97 1, i97 1>
+ %b = trunc <8 x i97> %a to <8 x i32>
+ ret <8 x i32> %b
+}
+
+define <8 x i32> @bax() {
+ %a = lshr <8 x i96> <i96 4, i96 4, i96 4, i96 4, i96 4, i96 4, i96 4, i96 4>, <i96 1, i96 1, i96 1, i96 1, i96 1, i96 1, i96 1, i96 1>
+ %b = trunc <8 x i96> %a to <8 x i32>
+ ret <8 x i32> %b
+}