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-rw-r--r--test/CodeGen/X86/remat-mov-0.ll13
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGen/X86/remat-mov-0.ll b/test/CodeGen/X86/remat-mov-0.ll
new file mode 100644
index 0000000000..c4f768ca52
--- /dev/null
+++ b/test/CodeGen/X86/remat-mov-0.ll
@@ -0,0 +1,13 @@
+; RUN: llc < %s -march=x86-64 | grep {xorl %edi, %edi} | count 4
+
+; CodeGen should remat the zero instead of spilling it.
+
+declare void @foo(i64 %p)
+
+define void @bar() nounwind {
+ call void @foo(i64 0)
+ call void @foo(i64 0)
+ call void @foo(i64 0)
+ call void @foo(i64 0)
+ ret void
+}