llvm-6502/test/Assembler/inline-asm-clobber.ll

; RUN: not llvm-as <%s 2>&1  | FileCheck %s

; "~x{21}" is not a valid clobber constraint.

; CHECK: invalid type for inline asm constraint string

define void @foo() nounwind {
  call void asm sideeffect "mov x0, #42", "~{x0},~{x19},~x{21}"() nounwind
  ret void
}
[inline asm] Add a check in InlineAsm::ConstraintInfo::Parse to make sure '{' follows '~' in a clobber constraint string. Previously llc would hit an llvm_unreachable when compiling an inline-asm instruction with malformed constraint string "~x{21}". This commit enables LLParser to catch the error earlier and print a more helpful diagnostic. rdar://problem/14206559 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217288 91177308-0d34-0410-b5e6-96231b3b80d8 2014-09-05 22:30:32 +00:00			`; RUN: not llvm-as <%s 2>&1 \| FileCheck %s`

			`; "~x{21}" is not a valid clobber constraint.`

			`; CHECK: invalid type for inline asm constraint string`

			`define void @foo() nounwind {`
			`call void asm sideeffect "mov x0, #42", "~{x0},~{x19},~x{21}"() nounwind`
			`ret void`
			`}`