[inline asm] Add a test case for r180226. The specific issue is that the inline

assembly is requesting a 64-bit register, which is invalid for i386.
rdar://13731657

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180445 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/asm-invalid-register-class-crasher.ll b/test/CodeGen/X86/asm-invalid-register-class-crasher.ll
new file mode 100644 (file)
index 0000000..24e2284
--- /dev/null
+++ b/test/CodeGen/X86/asm-invalid-register-class-crasher.ll
@@ -0,0 +1,9 @@
+; RUN: not llc < %s -mtriple=i386-apple-darwin 2>&1 %t
+
+; Previously, this would assert in an assert build, but crash in a release build.
+; No FileCheck, just make sure we handle this gracefully.
+define i64 @t1(i64* %p, i64 %val) #0 {
+entry:
+  %0 = tail call i64 asm sideeffect "xaddq $0, $1", "=q,*m,0,~{memory},~{cc},~{dirflag},~{fpsr},~{flags}"(i64* %p, i64 %val)
+  ret i64 %0
+}