Custom lower the memory barrier instructions and add support

[oota-llvm.git] / lib / Target / X86 / README.txt

diff --git a/lib/Target/X86/README.txt b/lib/Target/X86/README.txt
index efc0cd82f23e991db73c83339a88b83661039c3a..6034a091d144d42b648ca088d2f7b065bdcffd72 100644 (file)
--- a/lib/Target/X86/README.txt
+++ b/lib/Target/X86/README.txt
@@ -1135,13 +1135,6 @@ void test(double *P) {
 
 //===---------------------------------------------------------------------===//
 
-handling llvm.memory.barrier on pre SSE2 cpus
-
-should generate:
-lock ; mov %esp, %esp
-
-//===---------------------------------------------------------------------===//
-
 The generated code on x86 for checking for signed overflow on a multiply the
 obvious way is much longer than it needs to be.