X86: Align the stack on word boundaries in LowerFormalArguments()

[oota-llvm.git] / test / CodeGen / X86 / win64_params.ll

diff --git a/test/CodeGen/X86/win64_params.ll b/test/CodeGen/X86/win64_params.ll
index 0b67368e04f96eb9cfc4d298838e90c2c3ea2154..9718c86300c25c4a13eab7a9d8531482febaf9f0 100644 (file)
--- a/test/CodeGen/X86/win64_params.ll
+++ b/test/CodeGen/X86/win64_params.ll
@@ -1,11 +1,36 @@
 ; RUN: llc < %s -mtriple=x86_64-pc-win32 | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s -check-prefix=LINUX
 
 ; Verify that the 5th and 6th parameters are coming from the correct location
 ; on the stack.
 define i32 @f6(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6) nounwind readnone optsize {
 entry:
-; CHECK: movl    80(%rsp), %eax
-; CHECK: addl    72(%rsp), %eax
+; CHECK: movl    48(%rsp), %eax
+; CHECK: addl    40(%rsp), %eax
+; LINUX: addl    %r9d, %r8d
+; LINUX: movl    %r8d, %eax
+  %add = add nsw i32 %p6, %p5
+  ret i32 %add
+}
+
+define x86_64_win64cc i32 @f7(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6) nounwind readnone optsize {
+entry:
+; CHECK: movl    48(%rsp), %eax
+; CHECK: addl    40(%rsp), %eax
+; LINUX: movl    48(%rsp), %eax
+; LINUX: addl    40(%rsp), %eax
+  %add = add nsw i32 %p6, %p5
+  ret i32 %add
+}
+
+; Verify that even though we're compiling for Windows, parameters behave as
+; on other platforms here (note the x86_64_sysvcc calling convention).
+define x86_64_sysvcc i32 @f8(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6) nounwind readnone optsize {
+entry:
+; CHECK: addl    %r9d, %r8d
+; CHECK: movl    %r8d, %eax
+; LINUX: addl    %r9d, %r8d
+; LINUX: movl    %r8d, %eax
   %add = add nsw i32 %p6, %p5
   ret i32 %add
 }