It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/negative_zero.ll b/test/CodeGen/X86/negative_zero.ll
new file mode 100644
index 0000000..3328a6a
--- /dev/null
+++ b/test/CodeGen/X86/negative_zero.ll
@@ -0,0 +1,6 @@
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=x86 -mattr=-sse2,-sse3 | grep fchs
+
+
+double %T() {
+ ret double -1.0 ;; codegen as fld1/fchs, not as a load from cst pool
+}