Reapply r155682, making constant folding more consistent, with a fix to work

[oota-llvm.git] / test / CodeGen / X86 / win64_alloca_dynalloca.ll

diff --git a/test/CodeGen/X86/win64_alloca_dynalloca.ll b/test/CodeGen/X86/win64_alloca_dynalloca.ll
index cbd38da60e9604923f05790e7ae0802832164412..a961c6af188449420bfefcd8bc8f8388d08243b2 100644 (file)
--- a/test/CodeGen/X86/win64_alloca_dynalloca.ll
+++ b/test/CodeGen/X86/win64_alloca_dynalloca.ll
@@ -1,9 +1,12 @@
-; RUN: llc < %s -mtriple=x86_64-mingw32     | FileCheck %s -check-prefix=M64
-; RUN: llc < %s -mtriple=x86_64-win32       | FileCheck %s -check-prefix=W64
-; RUN: llc < %s -mtriple=x86_64-win32-macho | FileCheck %s -check-prefix=EFI
+; RUN: llc < %s -join-physregs -mcpu=generic -mtriple=x86_64-mingw32     | FileCheck %s -check-prefix=M64
+; RUN: llc < %s -join-physregs -mcpu=generic -mtriple=x86_64-win32       | FileCheck %s -check-prefix=W64
+; RUN: llc < %s -join-physregs -mcpu=generic -mtriple=x86_64-win32-macho | FileCheck %s -check-prefix=EFI
 ; PR8777
 ; PR8778
 
+; Passing the same value in two registers creates a false interference that
+; only -join-physregs resolves. It could also be handled by a parallel copy.
+
 define i64 @foo(i64 %n, i64 %x) nounwind {
 entry:
 
@@ -40,9 +43,9 @@ entry:
 ; W64: subq  %rax, %rsp
 ; W64: movq  %rsp, %rax
 
-; EFI: leaq  15(%rcx), [[R1:%r..]]
+; EFI: leaq  15(%rcx), [[R1:%r.*]]
 ; EFI: andq  $-16, [[R1]]
-; EFI: movq  %rsp, [[R64:%r..]]
+; EFI: movq  %rsp, [[R64:%r.*]]
 ; EFI: subq  [[R1]], [[R64]]
 ; EFI: movq  [[R64]], %rsp