add testcase for regression

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46073 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/PowerPC/longdbl-truncate.ll b/test/CodeGen/PowerPC/longdbl-truncate.ll
new file mode 100644 (file)
index 0000000..a873824
--- /dev/null
+++ b/test/CodeGen/PowerPC/longdbl-truncate.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | llc
+target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128"
+target triple = "powerpc-apple-darwin8"
+
+define double @SolveCubic(ppc_fp128 %X) {
+entry:
+       %Y = fptrunc ppc_fp128 %X to double
+       ret double %Y
+}