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-rw-r--r--gcc/testsuite/gcc.c-torture/compile/pr27528.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr27528.c b/gcc/testsuite/gcc.c-torture/compile/pr27528.c
new file mode 100644
index 000000000..040049127
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr27528.c
@@ -0,0 +1,40 @@
+/* Check that constant constraints like "i", "n" and "s" can be used in
+ cases where the operand is an initializer constant. */
+/* { dg-require-effective-target nonpic } */
+
+int x[2] = { 1, 2 };
+
+#ifdef __OPTIMIZE__
+static inline void __attribute__((__always_inline__))
+insn1 (int x)
+{
+ asm volatile ("" :: "n" (x), "i" (x));
+}
+
+static inline void __attribute__((__always_inline__))
+insn2 (const void *x)
+{
+ asm volatile ("" :: "s" (x), "i" (x));
+}
+#endif
+
+void
+foo (void)
+{
+#ifdef __OPTIMIZE__
+ insn1 (2);
+ insn1 (2);
+ insn1 (400);
+ insn1 (__LINE__);
+ insn2 (x);
+ insn2 (x);
+ insn2 (&x[1]);
+ insn2 ("string");
+#endif
+ asm volatile ("" :: "s" (x), "i" (x));
+ /* At the time of writing, &x[1] is decomposed before reaching expand
+ when compiling with -O0. */
+ asm volatile ("" :: "s" ("string"), "i" ("string"));
+ asm volatile ("" :: "s" (__FILE__), "i" (__FILE__));
+ asm volatile ("" :: "s" (__FUNCTION__), "i" (__FUNCTION__));
+}