[llvm] r340737 - [X86] Adding the test pointing to the fail case of D45653

[Aleksandr Urakov via llvm-commits]

Author: aleksandr.urakov
Date: Mon Aug 27 04:56:32 2018
New Revision: 340737

URL: http://llvm.org/viewvc/llvm-project?rev=340737&view=rev
Log:
[X86] Adding the test pointing to the fail case of D45653

Summary:
This commit adds the case of tail calling a sret function from a non-sret
function when both functions have the C calling convention.

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=340737&r1=340736&r2=340737&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/sibcall.ll (original)
+++ llvm/trunk/test/CodeGen/X86/sibcall.ll Mon Aug 27 04:56:32 2018
@@ -701,3 +701,32 @@ define fastcc void @t21_non_sret_to_sret
 
 declare fastcc void @t21_f_sret(%struct.foo* noalias sret) nounwind
 declare fastcc void @t21_f_non_sret(%struct.foo*) nounwind
+
+define ccc void @t22_non_sret_to_sret(%struct.foo* %agg.result) nounwind  {
+; X86-LABEL: t22_non_sret_to_sret:
+; X86:       # %bb.0:
+; X86-NEXT:    subl $12, %esp
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl %eax, (%esp)
+; X86-NEXT:    calll t22_f_sret
+; X86-NEXT:    addl $8, %esp
+; X86-NEXT:    retl
+;
+; X64-LABEL: t22_non_sret_to_sret:
+; X64:       # %bb.0:
+; X64-NEXT:    pushq %rax
+; X64-NEXT:    callq t22_f_sret
+; X64-NEXT:    popq %rax
+; X64-NEXT:    retq
+;
+; X32-LABEL: t22_non_sret_to_sret:
+; X32:       # %bb.0:
+; X32-NEXT:    pushq %rax
+; X32-NEXT:    callq t22_f_sret
+; X32-NEXT:    popq %rax
+; X32-NEXT:    retq
+  tail call ccc void @t22_f_sret(%struct.foo* noalias sret %agg.result) nounwind
+  ret void
+}
+
+declare ccc void @t22_f_sret(%struct.foo* noalias sret) nounwind