[llvm] r339760 - [X86] Add sibling-call test cases

[Roman Lebedev via llvm-commits]

The commit subject should also had "[NFC]", since this is literally no
functional change.

On Wed, Aug 15, 2018 at 1:54 PM, Aleksandr Urakov via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
> Author: aleksandr.urakov
> Date: Wed Aug 15 03:54:06 2018
> New Revision: 339760
>
> URL: http://llvm.org/viewvc/llvm-project?rev=339760&view=rev
> Log:
> [X86] Add sibling-call test cases
>
> This commit adds new sibling-call test cases, so it will be possible to see
> how these test cases will be changed after applying D45653.
> See D45653 for details.
>
> Modified:
>     llvm/trunk/test/CodeGen/X86/sibcall.ll
>
> Modified: llvm/trunk/test/CodeGen/X86/sibcall.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/sibcall.ll?rev=339760&r1=339759&r2=339760&view=diff
> ==============================================================================
> --- llvm/trunk/test/CodeGen/X86/sibcall.ll (original)
> +++ llvm/trunk/test/CodeGen/X86/sibcall.ll Wed Aug 15 03:54:06 2018
> @@ -606,3 +606,112 @@ entry:
>  }
>
>  declare fastcc double @foo20(double) nounwind
> +
> +; bug 28417
> +define fastcc void @t21_sret_to_sret(%struct.foo* noalias sret %agg.result) nounwind  {
> +; 32-LABEL: t21_sret_to_sret:
> +; 32: jmp {{_?}}t21_f_sret
> +; 64-LABEL: t21_sret_to_sret:
> +; 64: jmp {{_?}}t21_f_sret
> +; X32-LABEL: t21_sret_to_sret:
> +; X32:       # %bb.0:
> +; X32-NEXT:    pushl %esi
> +; X32-NEXT:    subl $8, %esp
> +; X32-NEXT:    movl %ecx, %esi
> +; X32-NEXT:    calll t21_f_sret
> +; X32-NEXT:    movl %esi, %eax
> +; X32-NEXT:    addl $8, %esp
> +; X32-NEXT:    popl %esi
> +; X32-NEXT:    retl
> +;
> +; X64-LABEL: t21_sret_to_sret:
> +; X64:       # %bb.0:
> +; X64-NEXT:    pushq %rbx
> +; X64-NEXT:    movq %rdi, %rbx
> +; X64-NEXT:    callq t21_f_sret
> +; X64-NEXT:    movq %rbx, %rax
> +; X64-NEXT:    popq %rbx
> +; X64-NEXT:    retq
> +;
> +; X32ABI-LABEL: t21_sret_to_sret:
> +; X32ABI:       # %bb.0:
> +; X32ABI-NEXT:    pushq %rbx
> +; X32ABI-NEXT:    movl %edi, %ebx
> +; X32ABI-NEXT:    callq t21_f_sret
> +; X32ABI-NEXT:    movl %ebx, %eax
> +; X32ABI-NEXT:    popq %rbx
> +; X32ABI-NEXT:    retq
> +  tail call fastcc void @t21_f_sret(%struct.foo* noalias sret %agg.result) nounwind
> +  ret void
> +}
> +
> +define fastcc void @t21_sret_to_non_sret(%struct.foo* noalias sret %agg.result) nounwind  {
> +; 32-LABEL: t21_sret_to_non_sret:
> +; 32: calll {{_?}}t21_f_non_sret
> +; 32: retl
> +; 64-LABEL: t21_sret_to_non_sret:
> +; 64: callq {{_?}}t21_f_non_sret
> +; 64: retq
> +; X32-LABEL: t21_sret_to_non_sret:
> +; X32:       # %bb.0:
> +; X32-NEXT:    pushl %esi
> +; X32-NEXT:    subl $8, %esp
> +; X32-NEXT:    movl %ecx, %esi
> +; X32-NEXT:    calll t21_f_non_sret
> +; X32-NEXT:    movl %esi, %eax
> +; X32-NEXT:    addl $8, %esp
> +; X32-NEXT:    popl %esi
> +; X32-NEXT:    retl
> +;
> +; X64-LABEL: t21_sret_to_non_sret:
> +; X64:       # %bb.0:
> +; X64-NEXT:    pushq %rbx
> +; X64-NEXT:    movq %rdi, %rbx
> +; X64-NEXT:    callq t21_f_non_sret
> +; X64-NEXT:    movq %rbx, %rax
> +; X64-NEXT:    popq %rbx
> +; X64-NEXT:    retq
> +;
> +; X32ABI-LABEL: t21_sret_to_non_sret:
> +; X32ABI:       # %bb.0:
> +; X32ABI-NEXT:    pushq %rbx
> +; X32ABI-NEXT:    movl %edi, %ebx
> +; X32ABI-NEXT:    callq t21_f_non_sret
> +; X32ABI-NEXT:    movl %ebx, %eax
> +; X32ABI-NEXT:    popq %rbx
> +; X32ABI-NEXT:    retq
> +  tail call fastcc void @t21_f_non_sret(%struct.foo* %agg.result) nounwind
> +  ret void
> +}
> +
> +define fastcc void @t21_non_sret_to_sret(%struct.foo* %agg.result) nounwind  {
> +; 32-LABEL: t21_non_sret_to_sret:
> +; 32: jmp {{_?}}t21_f_sret
> +; 64-LABEL: t21_non_sret_to_sret:
> +; 64: jmp {{_?}}t21_f_sret
> +; X32-LABEL: t21_non_sret_to_sret:
> +; X32:       # %bb.0:
> +; X32-NEXT:    subl $12, %esp
> +; X32-NEXT:    calll t21_f_sret
> +; X32-NEXT:    addl $12, %esp
> +; X32-NEXT:    retl
> +;
> +; X64-LABEL: t21_non_sret_to_sret:
> +; X64:       # %bb.0:
> +; X64-NEXT:    pushq %rax
> +; X64-NEXT:    callq t21_f_sret
> +; X64-NEXT:    popq %rax
> +; X64-NEXT:    retq
> +;
> +; X32ABI-LABEL: t21_non_sret_to_sret:
> +; X32ABI:       # %bb.0:
> +; X32ABI-NEXT:    pushq %rax
> +; X32ABI-NEXT:    callq t21_f_sret
> +; X32ABI-NEXT:    popq %rax
> +; X32ABI-NEXT:    retq
> +  tail call fastcc void @t21_f_sret(%struct.foo* noalias sret %agg.result) nounwind
> +  ret void
> +}
> +
> +declare fastcc void @t21_f_sret(%struct.foo* noalias sret) nounwind
> +declare fastcc void @t21_f_non_sret(%struct.foo*) nounwind
>
>
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