Changes in directory llvm/lib/Transforms/Scalar:
InstructionCombining.cpp updated: 1.460 -> 1.461
---
Log message:
vector casts of casts are eliminable. Transform this:
%tmp = cast <4 x uint> %tmp to <4 x int> ; <<4 x int>>
[#uses=1]
%tmp = cast <4 x int> %tmp to <4 x float> ; <<4 x float>>
[#uses=1]
into:
%tmp = cast <4 x uint> %tmp to <4 x float> ; <<4 x float>>
[#uses=1]
---
Diffs of the changes: (+4 -0)
InstructionCombining.cpp | 4 ++++
1 files changed, 4 insertions(+)
Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.460
llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.461
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.460 Sat Apr 1
23:37:12 2006
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp Sat Apr 1 23:43:13 2006
@@ -4539,6 +4539,10 @@
SrcTy->getPrimitiveSize() < MidTy->getPrimitiveSize())
return true;
+ // Packed type conversions don't modify bits.
+ if (isa<PackedType>(SrcTy) && isa<PackedType>(MidTy)
&&isa<PackedType>(DstTy))
+ return true;
+
return false;
}
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