[llvm-commits] CVS: llvm/lib/Target/X86/README.txt

[Evan Cheng]

Changes in directory llvm/lib/Target/X86:

README.txt updated: 1.21 -> 1.22
---
Log message:

Minor update.


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Diffs of the changes:  (+9 -0)

 README.txt |    9 +++++++++
 1 files changed, 9 insertions(+)


Index: llvm/lib/Target/X86/README.txt
diff -u llvm/lib/Target/X86/README.txt:1.21 llvm/lib/Target/X86/README.txt:1.22
--- llvm/lib/Target/X86/README.txt:1.21	Thu Jan 12 16:54:21 2006
+++ llvm/lib/Target/X86/README.txt	Thu Jan 12 19:20:42 2006
@@ -112,3 +112,12 @@
 //===---------------------------------------------------------------------===//
 
 Check if load folding would add a cycle in the dag.
+
+//===---------------------------------------------------------------------===//
+
+Model X86 EFLAGS as a real register to avoid redudant cmp / test. e.g.
+
+	cmpl $1, %eax
+	setg %al
+	testb %al, %al  # unnecessary
+	jne .BB7