CodeGen peephole: fold redundant phys reg copies

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

diff --git a/test/CodeGen/X86/memcmp.ll b/test/CodeGen/X86/memcmp.ll
index f4bc1bb7015a0555ba025608002d2703c9352f2c..e5f1f526b467f47d0db1cac7089898aa7cc8235b 100644 (file)
--- a/test/CodeGen/X86/memcmp.ll
+++ b/test/CodeGen/X86/memcmp.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
+; RUN: llc < %s -disable-simplify-libcalls -mtriple=x86_64-linux | FileCheck %s --check-prefix=NOBUILTIN
 ; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
 
 ; This tests codegen time inlining/optimization of memcmp
@@ -10,7 +11,7 @@ declare i32 @memcmp(...)
 
 define void @memcmp2(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
 entry:
-  %0 = tail call i32 (...)* @memcmp(i8* %X, i8* %Y, i32 2) nounwind ; <i32> [#uses=1]
+  %0 = tail call i32 (...) @memcmp(i8* %X, i8* %Y, i32 2) nounwind ; <i32> [#uses=1]
   %1 = icmp eq i32 %0, 0                          ; <i1> [#uses=1]
   br i1 %1, label %return, label %bb
 
@@ -20,14 +21,17 @@ bb:                                               ; preds = %entry
 
 return:                                           ; preds = %entry
   ret void
-; CHECK: memcmp2:
-; CHECK: movw    ([[A0:%rdi|%rcx]]), %ax
-; CHECK: cmpw    ([[A1:%rsi|%rdx]]), %ax
+; CHECK-LABEL: memcmp2:
+; CHECK: movzwl
+; CHECK-NEXT: movzwl
+; CHECK-NEXT: cmpl
+; NOBUILTIN-LABEL: memcmp2:
+; NOBUILTIN: callq
 }
 
 define void @memcmp2a(i8* %X, i32* nocapture %P) nounwind {
 entry:
-  %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8]* @.str, i32 0, i32 1), i32 2) nounwind ; <i32> [#uses=1]
+  %0 = tail call i32 (...) @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 1), i32 2) nounwind ; <i32> [#uses=1]
   %1 = icmp eq i32 %0, 0                          ; <i1> [#uses=1]
   br i1 %1, label %return, label %bb
 
@@ -37,14 +41,15 @@ bb:                                               ; preds = %entry
 
 return:                                           ; preds = %entry
   ret void
-; CHECK: memcmp2a:
-; CHECK: cmpw    $28527, ([[A0]])
+; CHECK-LABEL: memcmp2a:
+; CHECK: movzwl
+; CHECK-NEXT: cmpl    $28527,
 }
 
 
 define void @memcmp4(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
 entry:
-  %0 = tail call i32 (...)* @memcmp(i8* %X, i8* %Y, i32 4) nounwind ; <i32> [#uses=1]
+  %0 = tail call i32 (...) @memcmp(i8* %X, i8* %Y, i32 4) nounwind ; <i32> [#uses=1]
   %1 = icmp eq i32 %0, 0                          ; <i1> [#uses=1]
   br i1 %1, label %return, label %bb
 
@@ -54,14 +59,14 @@ bb:                                               ; preds = %entry
 
 return:                                           ; preds = %entry
   ret void
-; CHECK: memcmp4:
-; CHECK: movl    ([[A0]]), %eax
-; CHECK: cmpl    ([[A1]]), %eax
+; CHECK-LABEL: memcmp4:
+; CHECK: movl
+; CHECK-NEXT: cmpl
 }
 
 define void @memcmp4a(i8* %X, i32* nocapture %P) nounwind {
 entry:
-  %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8]* @.str, i32 0, i32 1), i32 4) nounwind ; <i32> [#uses=1]
+  %0 = tail call i32 (...) @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 1), i32 4) nounwind ; <i32> [#uses=1]
   %1 = icmp eq i32 %0, 0                          ; <i1> [#uses=1]
   br i1 %1, label %return, label %bb
 
@@ -71,13 +76,13 @@ bb:                                               ; preds = %entry
 
 return:                                           ; preds = %entry
   ret void
-; CHECK: memcmp4a:
-; CHECK: cmpl $1869573999, ([[A0]])
+; CHECK-LABEL: memcmp4a:
+; CHECK: cmpl $1869573999,
 }
 
 define void @memcmp8(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
 entry:
-  %0 = tail call i32 (...)* @memcmp(i8* %X, i8* %Y, i32 8) nounwind ; <i32> [#uses=1]
+  %0 = tail call i32 (...) @memcmp(i8* %X, i8* %Y, i32 8) nounwind ; <i32> [#uses=1]
   %1 = icmp eq i32 %0, 0                          ; <i1> [#uses=1]
   br i1 %1, label %return, label %bb
 
@@ -87,14 +92,14 @@ bb:                                               ; preds = %entry
 
 return:                                           ; preds = %entry
   ret void
-; CHECK: memcmp8:
-; CHECK: movq    ([[A0]]), %rax
-; CHECK: cmpq    ([[A1]]), %rax
+; CHECK-LABEL: memcmp8:
+; CHECK: movq
+; CHECK: cmpq
 }
 
 define void @memcmp8a(i8* %X, i32* nocapture %P) nounwind {
 entry:
-  %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8]* @.str, i32 0, i32 0), i32 8) nounwind ; <i32> [#uses=1]
+  %0 = tail call i32 (...) @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0), i32 8) nounwind ; <i32> [#uses=1]
   %1 = icmp eq i32 %0, 0                          ; <i1> [#uses=1]
   br i1 %1, label %return, label %bb
 
@@ -104,8 +109,8 @@ bb:                                               ; preds = %entry
 
 return:                                           ; preds = %entry
   ret void
-; CHECK: memcmp8a:
-; CHECK: movabsq $8029759185026510694, %rax
-; CHECK: cmpq  %rax, ([[A0]])
+; CHECK-LABEL: memcmp8a:
+; CHECK: movabsq $8029759185026510694,
+; CHECK: cmpq
 }