llvm-6502/test/CodeGen/X86/inline-asm-error.ll

; RUN: not llc -march x86 -regalloc=fast -optimize-regalloc=0 < %s 2> %t1
; RUN: not llc -march x86 -regalloc=basic      < %s 2> %t2
; RUN: not llc -march x86 -regalloc=greedy     < %s 2> %t3
; RUN: FileCheck %s < %t1
; RUN: FileCheck %s < %t2
; RUN: FileCheck %s < %t3

; The register allocator must fail on this function.
; CHECK: error: inline assembly requires more registers than available

define void @f(i32 %x0, i32 %x1, i32 %x2, i32 %x3, i32 %x4, i32 %x5, i32 %x6, i32 %x7, i32 %x8, i32 %x9) nounwind ssp {
entry:
  tail call void asm sideeffect "hello world", "r,r,r,r,r,r,r,r,r,r,~{dirflag},~{fpsr},~{flags}"(i32 %x0, i32 %x1, i32 %x2, i32 %x3, i32 %x4, i32 %x5, i32 %x6, i32 %x7, i32 %x8, i32 %x9) nounwind
  ret void
}
Don't run RAFast in the optimizing regalloc pipeline. The fast register allocator is not supposed to work in the optimizing pipeline. It doesn't make sense to compute live intervals, run full copy coalescing, and then run RAFast. Fast register allocation in the optimizing pipeline is better done by RABasic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158242 91177308-0d34-0410-b5e6-96231b3b80d8 2012-06-08 23:15:12 +00:00			`; RUN: not llc -march x86 -regalloc=fast -optimize-regalloc=0 < %s 2> %t1`
Emit a proper error message when register allocators run out of registers. This can't be just an assertion, users can always write impossible inline assembly. Such an assembly statement should be included in the error message. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131024 91177308-0d34-0410-b5e6-96231b3b80d8 2011-05-06 21:58:30 +00:00			`; RUN: not llc -march x86 -regalloc=basic < %s 2> %t2`
			`; RUN: not llc -march x86 -regalloc=greedy < %s 2> %t3`
			`; RUN: FileCheck %s < %t1`
			`; RUN: FileCheck %s < %t2`
			`; RUN: FileCheck %s < %t3`

Better diagnostics when inline asm fails to allocate. asm.c:2:7: error: ran out of registers during register allocation asm(""::"r"(0), "r"(1), "r"(2), "r"(3), "r"(4), "r"(5), "r"(6), "r"(7), "r"(8), "r"(9)); ^ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134310 91177308-0d34-0410-b5e6-96231b3b80d8 2011-07-02 07:17:37 +00:00			`; The register allocator must fail on this function.`
Emit a better error when running out of registers on inline asm. The most likely case where this error happens is when the user specifies too many register operands. Don't make it look like an internal LLVM bug when we can see that the error is coming from an inline asm instruction. For other instructions we keep the "ran out of registers" error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192041 91177308-0d34-0410-b5e6-96231b3b80d8 2013-10-05 19:33:37 +00:00			`; CHECK: error: inline assembly requires more registers than available`
Emit a proper error message when register allocators run out of registers. This can't be just an assertion, users can always write impossible inline assembly. Such an assembly statement should be included in the error message. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131024 91177308-0d34-0410-b5e6-96231b3b80d8 2011-05-06 21:58:30 +00:00
			`define void @f(i32 %x0, i32 %x1, i32 %x2, i32 %x3, i32 %x4, i32 %x5, i32 %x6, i32 %x7, i32 %x8, i32 %x9) nounwind ssp {`
			`entry:`
			`tail call void asm sideeffect "hello world", "r,r,r,r,r,r,r,r,r,r,~{dirflag},~{fpsr},~{flags}"(i32 %x0, i32 %x1, i32 %x2, i32 %x3, i32 %x4, i32 %x5, i32 %x6, i32 %x7, i32 %x8, i32 %x9) nounwind`
			`ret void`
			`}`