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-rw-r--r--test/CodeGen/Generic/inline-asm-mem-clobber.ll21
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/Generic/inline-asm-mem-clobber.ll b/test/CodeGen/Generic/inline-asm-mem-clobber.ll
new file mode 100644
index 0000000000..e523d031dc
--- /dev/null
+++ b/test/CodeGen/Generic/inline-asm-mem-clobber.ll
@@ -0,0 +1,21 @@
+; RUN: llc -O2 < %s | FileCheck %s
+
+@G = common global i32 0, align 4
+
+define i32 @foo(i8* %p) nounwind uwtable {
+entry:
+ %p.addr = alloca i8*, align 8
+ %rv = alloca i32, align 4
+ store i8* %p, i8** %p.addr, align 8
+ store i32 0, i32* @G, align 4
+ %0 = load i8** %p.addr, align 8
+; CHECK: blah
+ %1 = call i32 asm "blah", "=r,r,~{memory}"(i8* %0) nounwind
+; CHECK: @G
+ store i32 %1, i32* %rv, align 4
+ %2 = load i32* %rv, align 4
+ %3 = load i32* @G, align 4
+ %add = add nsw i32 %2, %3
+ ret i32 %add
+}
+