Add a regression test for bug 478.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26471 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2006-03-01-InstrSchedBug.ll b/test/CodeGen/X86/2006-03-01-InstrSchedBug.ll
new file mode 100644 (file)
index 0000000..0d2eda0
--- /dev/null
+++ b/test/CodeGen/X86/2006-03-01-InstrSchedBug.ll
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | llc -march=x86 | not grep 'subl.*%esp'
+
+int %f(int %a, int %b) {
+       %tmp.2 = mul int %a, %a
+       %tmp.5 = shl int %a, ubyte 1
+       %tmp.6 = mul int %tmp.5, %b
+       %tmp.10 = mul int %b, %b
+       %tmp.7 = add int %tmp.10, %tmp.2
+       %tmp.11 = add int %tmp.7, %tmp.6
+       ret int %tmp.11
+}