[x86] Restructure the parallel bitmath lowering of popcount into

[oota-llvm.git] / test / CodeGen / X86 / tailcallbyval64.ll

diff --git a/test/CodeGen/X86/tailcallbyval64.ll b/test/CodeGen/X86/tailcallbyval64.ll
index 7c685b85807e0faa412e1c65425441b8f5791a30..9df1470c67f13fceadbd9ad8242c111c19b94fa3 100644 (file)
--- a/test/CodeGen/X86/tailcallbyval64.ll
+++ b/test/CodeGen/X86/tailcallbyval64.ll
@@ -1,15 +1,30 @@
-; RUN: llc < %s -march=x86-64  -tailcallopt  | grep TAILCALL
+; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux  -tailcallopt  | FileCheck %s
+
+; FIXME: Win64 does not support byval.
+
+; Expect the entry point.
+; CHECK-LABEL: tailcaller:
+
 ; Expect 2 rep;movs because of tail call byval lowering.
-; RUN: llc < %s -march=x86-64  -tailcallopt  | grep rep | wc -l | grep 2
+; CHECK: rep;
+; CHECK: rep;
+
 ; A sequence of copyto/copyfrom virtual registers is used to deal with byval
 ; lowering appearing after moving arguments to registers. The following two
 ; checks verify that the register allocator changes those sequences to direct
 ; moves to argument register where it can (for registers that are not used in 
 ; byval lowering - not rsi, not rdi, not rcx).
 ; Expect argument 4 to be moved directly to register edx.
-; RUN: llc < %s -march=x86-64  -tailcallopt  | grep movl | grep {7} | grep edx
+; CHECK: movl $7, %edx
+
 ; Expect argument 6 to be moved directly to register r8.
-; RUN: llc < %s -march=x86-64  -tailcallopt  | grep movl | grep {17} | grep r8
+; CHECK: movl $17, %r8d
+
+; Expect not call but jmp to @tailcallee.
+; CHECK: jmp tailcallee
+
+; Expect the trailer.
+; CHECK: .size tailcaller
 
 %struct.s = type { i64, i64, i64, i64, i64, i64, i64, i64,
                    i64, i64, i64, i64, i64, i64, i64, i64,
@@ -20,10 +35,8 @@ declare  fastcc i64 @tailcallee(%struct.s* byval %a, i64 %val, i64 %val2, i64 %v
 
 define  fastcc i64 @tailcaller(i64 %b, %struct.s* byval %a) {
 entry:
-        %tmp2 = getelementptr %struct.s* %a, i32 0, i32 1
-        %tmp3 = load i64* %tmp2, align 8
-        %tmp4 = tail call fastcc i64 @tailcallee(%struct.s* %a byval, i64 %tmp3, i64 %b, i64 7, i64 13, i64 17)
+        %tmp2 = getelementptr %struct.s, %struct.s* %a, i32 0, i32 1
+        %tmp3 = load i64, i64* %tmp2, align 8
+        %tmp4 = tail call fastcc i64 @tailcallee(%struct.s* byval %a , i64 %tmp3, i64 %b, i64 7, i64 13, i64 17)
         ret i64 %tmp4
 }
-
-