Add new function attribute - noredzone.
Update code generator to use this attribute and remove DisableRedZone target option.
Update llc to set this attribute when -disable-red-zone command line option is used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72894 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/red-zone2.ll b/test/CodeGen/X86/red-zone2.ll
new file mode 100644
index 0000000..dea7d7e
--- /dev/null
+++ b/test/CodeGen/X86/red-zone2.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | llc -march=x86-64 > %t
+; RUN: grep subq %t | count 1
+; RUN: grep addq %t | count 1
+
+define x86_fp80 @f0(float %f) nounwind readnone noredzone {
+entry:
+ %0 = fpext float %f to x86_fp80 ; <x86_fp80> [#uses=1]
+ ret x86_fp80 %0
+}