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diff --git a/test/Transforms/InstCombine/pr25745.ll b/test/Transforms/InstCombine/pr25745.ll
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+++ b/test/Transforms/InstCombine/pr25745.ll
@@ -0,0 +1,20 @@
+; RUN: opt -S -instcombine < %s | FileCheck %s
+
+; Checking for a crash
+
+declare void @use.i1(i1 %val)
+declare void @use.i64(i64 %val)
+
+define i64 @f(i32 %x) {
+; CHECK-LABEL: @f(
+ entry:
+ %x.wide = sext i32 %x to i64
+ %minus.x = sub i32 0, %x
+ %minus.x.wide = sext i32 %minus.x to i64
+ %c = icmp slt i32 %x, 0
+ %val = select i1 %c, i64 %x.wide, i64 %minus.x.wide
+ call void @use.i1(i1 %c)
+ call void @use.i64(i64 %x.wide)
+ ret i64 %val
+; CHECK: ret i64 %val
+}