New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19312 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/negatize_zero.ll b/test/CodeGen/X86/negatize_zero.ll
new file mode 100644 (file)
index 0000000..4da609d
--- /dev/null
+++ b/test/CodeGen/X86/negatize_zero.ll
@@ -0,0 +1,6 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep fchs
+
+
+double %T() {
+       ret double -1.0   ;; codegen as fld1/fchs, not as a load from cst pool
+}