1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/select-select.ll b/test/Transforms/InstCombine/select-select.ll
new file mode 100644
index 000000000000..65820acf07b8
--- /dev/null
+++ b/test/Transforms/InstCombine/select-select.ll
@@ -0,0 +1,24 @@
+; RUN: opt -instcombine -S < %s | FileCheck %s
+
+; CHECK: @foo1
+define float @foo1(float %a) #0 {
+; CHECK-NOT: xor
+  %b = fcmp ogt float %a, 0.000000e+00
+  %c = select i1 %b, float %a, float 0.000000e+00
+  %d = fcmp olt float %c, 1.000000e+00
+  %f = select i1 %d, float %c, float 1.000000e+00
+  ret float %f
+}
+
+; CHECK: @foo2
+define float @foo2(float %a) #0 {
+; CHECK-NOT: xor
+  %b = fcmp ogt float %a, 0.000000e+00
+  %c = select i1 %b, float %a, float 0.000000e+00
+  %d = fcmp olt float %c, 1.000000e+00
+  %e = select i1 %b, float %a, float 0.000000e+00
+  %f = select i1 %d, float %e, float 1.000000e+00
+  ret float %f
+}
+
+attributes #0 = { nounwind readnone ssp uwtable }