new testcase, by Dan Gohman

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34255 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/i128-mul.ll b/test/CodeGen/X86/i128-mul.ll
new file mode 100644 (file)
index 0000000..f8c732e
--- /dev/null
+++ b/test/CodeGen/X86/i128-mul.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | llc -march=x86-64
+; PR1198
+
+define i64 @foo(i64 %x, i64 %y) {
+        %tmp0 = zext i64 %x to i128
+        %tmp1 = zext i64 %y to i128
+        %tmp2 = mul i128 %tmp0, %tmp1
+        %tmp7 = zext i32 64 to i128
+        %tmp3 = lshr i128 %tmp2, %tmp7
+        %tmp4 = trunc i128 %tmp3 to i64
+        ret i64 %tmp4
+}