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

[Chris Lattner]

Changes in directory llvm/lib/Target/ARM:

README.txt updated: 1.10 -> 1.11
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Log message:

add a note


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Diffs of the changes:  (+14 -0)

 README.txt |   14 ++++++++++++++
 1 files changed, 14 insertions(+)


Index: llvm/lib/Target/ARM/README.txt
diff -u llvm/lib/Target/ARM/README.txt:1.10 llvm/lib/Target/ARM/README.txt:1.11
--- llvm/lib/Target/ARM/README.txt:1.10	Fri Jan 19 01:51:42 2007
+++ llvm/lib/Target/ARM/README.txt	Thu Feb  1 22:36:46 2007
@@ -43,6 +43,20 @@
 copysign (i.e. we won't need to custom expand it to get the conditional
 negate).
 
+This allows us to eliminate one instruction from:
+
+define i32 @_Z6slow4bii(i32 %x, i32 %y) {
+        %tmp = icmp sgt i32 %x, %y
+        %retval = select i1 %tmp, i32 %x, i32 %y
+        ret i32 %retval
+}
+
+__Z6slow4bii:
+        cmp r0, r1
+        movgt r1, r0
+        mov r0, r1
+        bx lr
+
 //===---------------------------------------------------------------------===//
 
 Implement long long "X-3" with instructions that fold the immediate in.  These