Vendor import of clang trunk r135360:

http://llvm.org/svn/llvm-project/cfe/trunk@135360

1 files changed, 31 insertions, 0 deletions

diff --git a/test/CodeGen/arm-asm-variable.c b/test/CodeGen/arm-asm-variable.c
new file mode 100644
index 0000000..865d197
--- /dev/null
+++ b/test/CodeGen/arm-asm-variable.c
@@ -0,0 +1,31 @@
+// RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -w -o - %s | FileCheck %s
+
+typedef long long int64_t;
+typedef unsigned int uint32_t;
+
+int64_t foo(int64_t v, volatile int64_t *p)
+{
+  register uint32_t rl asm("r1");
+  register uint32_t rh asm("r2");
+
+  int64_t r;
+  uint32_t t;
+
+  __asm__ __volatile__(							\
+		       "ldrexd%[_rl], %[_rh], [%[_p]]"			\
+		       : [_rl] "=&r" (rl), [_rh] "=&r" (rh)		\
+		       : [_p] "p" (p) : "memory");
+
+  // CHECK: call { i32, i32 } asm sideeffect "ldrexd$0, $1, [$2]", "={r1},={r2},r,~{memory}"(i64*
+
+  return r;
+}
+
+// Make sure we translate register names properly.
+void bar (void) {
+  register unsigned int rn asm("r14");
+  register unsigned int d asm("r2");
+
+  // CHECK: call i32 asm sideeffect "sub $1, $1, #32", "={r2},{lr}"
+  asm volatile ("sub %1, %1, #32" : "=r"(d) : "r"(rn));
+}