Test case for r160036.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160067 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/Mips/sitofp-selectcc-opt.ll b/test/CodeGen/Mips/sitofp-selectcc-opt.ll
new file mode 100644 (file)
index 0000000..576cbd8
--- /dev/null
+++ b/test/CodeGen/Mips/sitofp-selectcc-opt.ll
@@ -0,0 +1,22 @@
+; RUN: llc -march=mipsel < %s | FileCheck %s
+
+@foo12.d4 = internal unnamed_addr global double 0.000000e+00, align 8
+
+define double @foo12(i32 %a, i32, i64 %b) nounwind {
+entry:
+; check that this transformation doesn't happen:
+; (sint_to_fp (setcc x, y, cc)) -> (select_cc x, y, -1.0, 0.0,, cc)
+;
+; CHECK-NOT:   # double -1.000000e+00
+
+  %tobool1 = icmp ne i32 %a, 0
+  %not.tobool = icmp ne i64 %b, 0
+  %tobool1. = or i1 %tobool1, %not.tobool
+  %lor.ext = zext i1 %tobool1. to i32
+  %conv = sitofp i32 %lor.ext to double
+  %1 = load double* @foo12.d4, align 8
+  %add = fadd double %conv, %1
+  store double %add, double* @foo12.d4, align 8
+  ret double %add
+}
+