As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias

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

diff --git a/test/CodeGen/X86/memcmp.ll b/test/CodeGen/X86/memcmp.ll
index f6086c4fbe2c9500f83e2f2dc15fed2e36f325ec..f4bc1bb7015a0555ba025608002d2703c9352f2c 100644 (file)
--- a/test/CodeGen/X86/memcmp.ll
+++ b/test/CodeGen/X86/memcmp.ll
@@ -1,9 +1,10 @@
-; RUN: llc %s -o - -march=x86-64 | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
 
 ; This tests codegen time inlining/optimization of memcmp
 ; rdar://6480398
 
-@.str = private constant [6 x i8] c"fooxx\00", align 1 ; <[6 x i8]*> [#uses=1]
+@.str = private constant [23 x i8] c"fooooooooooooooooooooo\00", align 1 ; <[23 x i8]*> [#uses=1]
 
 declare i32 @memcmp(...)
 
@@ -20,13 +21,13 @@ bb:                                               ; preds = %entry
 return:                                           ; preds = %entry
   ret void
 ; CHECK: memcmp2:
-; CHECK: movw    (%rsi), %ax
-; CHECK: cmpw    %ax, (%rdi)
+; CHECK: movw    ([[A0:%rdi|%rcx]]), %ax
+; CHECK: cmpw    ([[A1:%rsi|%rdx]]), %ax
 }
 
 define void @memcmp2a(i8* %X, i32* nocapture %P) nounwind {
 entry:
-  %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([6 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]* @.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
 
@@ -37,7 +38,7 @@ bb:                                               ; preds = %entry
 return:                                           ; preds = %entry
   ret void
 ; CHECK: memcmp2a:
-; CHECK: cmpw    $28527, (%rdi)
+; CHECK: cmpw    $28527, ([[A0]])
 }
 
 
@@ -54,13 +55,13 @@ bb:                                               ; preds = %entry
 return:                                           ; preds = %entry
   ret void
 ; CHECK: memcmp4:
-; CHECK: movl    (%rsi), %eax
-; CHECK: cmpl    %eax, (%rdi)
+; CHECK: movl    ([[A0]]), %eax
+; CHECK: cmpl    ([[A1]]), %eax
 }
 
 define void @memcmp4a(i8* %X, i32* nocapture %P) nounwind {
 entry:
-  %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([6 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]* @.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
 
@@ -71,6 +72,40 @@ bb:                                               ; preds = %entry
 return:                                           ; preds = %entry
   ret void
 ; CHECK: memcmp4a:
-; CHECK: cmpl $2021158767, (%rdi)
+; CHECK: cmpl $1869573999, ([[A0]])
+}
+
+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]
+  %1 = icmp eq i32 %0, 0                          ; <i1> [#uses=1]
+  br i1 %1, label %return, label %bb
+
+bb:                                               ; preds = %entry
+  store i32 4, i32* %P, align 4
+  ret void
+
+return:                                           ; preds = %entry
+  ret void
+; CHECK: memcmp8:
+; CHECK: movq    ([[A0]]), %rax
+; CHECK: cmpq    ([[A1]]), %rax
+}
+
+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]
+  %1 = icmp eq i32 %0, 0                          ; <i1> [#uses=1]
+  br i1 %1, label %return, label %bb
+
+bb:                                               ; preds = %entry
+  store i32 4, i32* %P, align 4
+  ret void
+
+return:                                           ; preds = %entry
+  ret void
+; CHECK: memcmp8a:
+; CHECK: movabsq $8029759185026510694, %rax
+; CHECK: cmpq  %rax, ([[A0]])
 }