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diff --git a/test/Sema/heinous-extensions-off.c b/test/Sema/heinous-extensions-off.c
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+++ b/test/Sema/heinous-extensions-off.c
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+// RUN: clang-cc %s -verify
+
+int foo() {
+ int a;
+ // PR3788
+ asm("nop" : : "m"((int)(a))); // expected-error {{cast in a inline asm context requiring an l-value}}
+ // PR3794
+ asm("nop" : "=r"((unsigned)a)); // expected-error {{cast in a inline asm context requiring an l-value}}
+}
+
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