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

[Chris Lattner]

Changes in directory llvm/lib/Target/X86:

README.txt updated: 1.16 -> 1.17
---
Log message:

Add a missed optimization


---
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:1.16 llvm/lib/Target/X86/README.txt:1.17
--- llvm/lib/Target/X86/README.txt:1.16	Sun Oct 23 16:45:00 2005
+++ llvm/lib/Target/X86/README.txt	Sun Nov 27 22:52:39 2005
@@ -73,3 +73,12 @@
 Should support emission of the bswap instruction, probably by adding a new
 DAG node for byte swapping.  Also useful on PPC which has byte-swapping loads.
 
+//===---------------------------------------------------------------------===//
+
+Compile this:
+_Bool f(_Bool a) { return a!=1; }
+
+into:
+        movzbl  %dil, %eax
+        xorl    $1, %eax
+        ret