Changes in directory llvm/lib/Target/X86:
README.txt updated: 1.91 -> 1.92
---
Log message:
Correct comments
---
Diffs of the changes: (+6 -6)
README.txt | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)
Index: llvm/lib/Target/X86/README.txt
diff -u llvm/lib/Target/X86/README.txt:1.91 llvm/lib/Target/X86/README.txt:1.92
--- llvm/lib/Target/X86/README.txt:1.91 Mon Apr 17 20:22:57 2006
+++ llvm/lib/Target/X86/README.txt Mon Apr 17 22:45:01 2006
@@ -982,17 +982,17 @@
jne LBB_main_4 # cond_true44
There are two problems. 1) No need to two loop induction variables. We can
-compare against 262144 * 16. 2) Poor register allocation decisions. We should
+compare against 262144 * 16. 2) Known register coalescer issue. We should
be able eliminate one of the movaps:
- addps %xmm1, %xmm2
- subps %xmm3, %xmm2
+ addps %xmm2, %xmm1 <=== Commute!
+ subps %xmm3, %xmm1
movaps (%ecx), %xmm4
- movaps %xmm2, %xmm2 <=== Eliminate!
- addps %xmm4, %xmm2
+ movaps %xmm1, %xmm1 <=== Eliminate!
+ addps %xmm4, %xmm1
addl $16, %ecx
incl %edx
cmpl $262144, %edx
- movaps %xmm3, %xmm1
+ movaps %xmm3, %xmm2
movaps %xmm4, %xmm3
jne LBB_main_4 # cond_true44
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