1 files changed, 17 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/memcmp-2.ll b/test/Transforms/InstCombine/memcmp-2.ll
new file mode 100644
index 0000000..3796117
--- /dev/null
+++ b/test/Transforms/InstCombine/memcmp-2.ll
@@ -0,0 +1,17 @@
+; Test that the memcmp library call simplifier works correctly.
+;
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+
+declare i32* @memcmp(i8*, i8*, i32)
+
+; Check that memcmp functions with the wrong prototype aren't simplified.
+
+define i32* @test_no_simplify1(i8* %mem, i32 %size) {
+; CHECK: @test_no_simplify1
+  %ret = call i32* @memcmp(i8* %mem, i8* %mem, i32 %size)
+; CHECK-NEXT: call i32* @memcmp
+  ret i32* %ret
+; CHECK-NEXT: ret i32* %ret
+}