[llvm-commits] [llvm] r125658 - /llvm/trunk/lib/Target/README.txt

[Eli Friedman]

Author: efriedma
Date: Wed Feb 16 01:17:44 2011
New Revision: 125658

URL: http://llvm.org/viewvc/llvm-project?rev=125658&view=rev
Log:
Update README entry.


Modified:
    llvm/trunk/lib/Target/README.txt

Modified: llvm/trunk/lib/Target/README.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/README.txt?rev=125658&r1=125657&r2=125658&view=diff
==============================================================================
--- llvm/trunk/lib/Target/README.txt (original)
+++ llvm/trunk/lib/Target/README.txt Wed Feb 16 01:17:44 2011
@@ -1783,13 +1783,12 @@
 }
 
 Generated code:
-       addq    %rcx, %rdx
-       movl    $0, %eax
-       adcq    $0, %rax
-       addq    %r8, %rax
-       movq    %rax, (%rdi)
-       movq    %rdx, (%rsi)
-       ret
+        addq	%rcx, %rdx
+        sbbq	%rax, %rax
+        subq	%rax, %r8
+        movq	%r8, (%rdi)
+        movq	%rdx, (%rsi)
+        ret
 
 Expected code:
        addq    %rcx, %rdx
@@ -1798,12 +1797,6 @@
        movq    %rdx, (%rsi)
        ret
 
-The generated SelectionDAG has an ADD of an ADDE, where both operands of the
-ADDE are zero. Replacing one of the operands of the ADDE with the other operand
-of the ADD, and replacing the ADD with the ADDE, should give the desired result.
-
-(That said, we are doing a lot better than gcc on this testcase. :) )
-
 //===---------------------------------------------------------------------===//
 
 Switch lowering generates less than ideal code for the following switch: