Add a test for llvm-gcc svn r104726.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104805 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/FrontendC/2010-05-26-AsmSideEffect.c b/test/FrontendC/2010-05-26-AsmSideEffect.c
new file mode 100644 (file)
index 0000000..c5f7579
--- /dev/null
+++ b/test/FrontendC/2010-05-26-AsmSideEffect.c
@@ -0,0 +1,12 @@
+// RUN: %llvmgcc %s -S -emit-llvm -o - | FileCheck %s
+// Radar 8026855
+
+int test (void *src) {
+  register int w0 asm ("0");
+  // CHECK: call i32 asm sideeffect
+  asm ("ldr %0, [%1]": "=r" (w0): "r" (src));
+  // The asm to read the value of w0 has a sideeffect for a different reason
+  // (see 2010-05-18-asmsched.c) but that's not what this is testing for.
+  // CHECK: call i32 asm
+  return w0;
+}