[llvm-commits] [llvm] r50478 - /llvm/trunk/test/CodeGen/X86/tailcallstack64.ll

[Arnold Schwaighofer]

Author: arnolds
Date: Wed Apr 30 04:19:47 2008
New Revision: 50478

URL: http://llvm.org/viewvc/llvm-project?rev=50478&view=rev
Log:
Really commit the test checking the argument lowering behaviour on x86-64 :).

Added:
    llvm/trunk/test/CodeGen/X86/tailcallstack64.ll

Added: llvm/trunk/test/CodeGen/X86/tailcallstack64.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/tailcallstack64.ll?rev=50478&view=auto

==============================================================================
--- llvm/trunk/test/CodeGen/X86/tailcallstack64.ll (added)
+++ llvm/trunk/test/CodeGen/X86/tailcallstack64.ll Wed Apr 30 04:19:47 2008
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 | grep TAILCALL
+; Check that lowered arguments on the stack do not overwrite each other.
+; Move param %in1 to temp register (%eax).
+; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {movl	40(%rsp), %eax}
+; Add %in1 %p1 to another temporary register (%r9d).
+; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {movl	%edi, %r9d}
+; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {addl	32(%rsp), %r9d}
+; Move result of addition to stack.
+; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {movl	%r9d, 40(%rsp)}
+; Move param %in2 to stack.
+; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {movl	%eax, 32(%rsp)}
+
+declare fastcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %a, i32 %b)
+
+define fastcc i32 @tailcaller(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %in1, i32 %in2) {
+entry:
+        %tmp = add i32 %in1, %p1
+        %retval = tail call fastcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %in2,i32 %tmp)
+        ret i32 %retval
+}
+