--- /dev/null
+; RUN: opt < %s -S -early-cse | FileCheck %s
+
+; Ensure we don't simplify away additions vectors of +0.0's (same as scalars).
+define <4 x float> @fV( <4 x float> %a) {
+ ; CHECK: %b = fadd <4 x float> %a, zeroinitializer
+ %b = fadd <4 x float> %a, <float 0.0,float 0.0,float 0.0,float 0.0>
+ ret <4 x float> %b
+}
+
+define <4 x float> @fW( <4 x float> %a) {
+ ; CHECK: ret <4 x float> %a
+ %b = fadd <4 x float> %a, <float -0.0,float -0.0,float -0.0,float -0.0>
+ ret <4 x float> %b
+}