Changes in directory llvm/lib/Target/PowerPC:
PPCSubtarget.cpp updated: 1.16 -> 1.17
README.txt updated: 1.47 -> 1.48
---
Log message:
add a note about how we should implement this FIXME from the legalizer:
// FIXME: revisit this when we have some kind of mechanism by which targets
// can decided legality of vector constants, of which there may be very
// many.
---
Diffs of the changes: (+7 -1)
PPCSubtarget.cpp | 2 +-
README.txt | 6 ++++++
2 files changed, 7 insertions(+), 1 deletion(-)
Index: llvm/lib/Target/PowerPC/PPCSubtarget.cpp
diff -u llvm/lib/Target/PowerPC/PPCSubtarget.cpp:1.16
llvm/lib/Target/PowerPC/PPCSubtarget.cpp:1.17
--- llvm/lib/Target/PowerPC/PPCSubtarget.cpp:1.16 Thu Nov 17 12:55:48 2005
+++ llvm/lib/Target/PowerPC/PPCSubtarget.cpp Fri Jan 27 23:40:47 2006
@@ -1,4 +1,4 @@
-//===- PowerPCSubtarget.cpp - PPC Subtarget Information ---------*- C++
-*-===//
+//===- PowerPCSubtarget.cpp - PPC Subtarget Information
-------------------===//
//
// The LLVM Compiler Infrastructure
//
Index: llvm/lib/Target/PowerPC/README.txt
diff -u llvm/lib/Target/PowerPC/README.txt:1.47
llvm/lib/Target/PowerPC/README.txt:1.48
--- llvm/lib/Target/PowerPC/README.txt:1.47 Fri Jan 27 19:22:10 2006
+++ llvm/lib/Target/PowerPC/README.txt Fri Jan 27 23:40:47 2006
@@ -396,3 +396,9 @@
Generate lwbrx and other byteswapping load/store instructions when reasonable.
+===-------------------------------------------------------------------------===
+
+Implement TargetConstantVec, and set up PPC to custom lower ConstantVec into
+TargetConstantVec's if it's one of the many forms that are algorithmically
+computable using the spiffy altivec instructions.
+
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