Bob Wilson b1303d05a8 Change SelectionDAG type legalization to allow BUILD_VECTOR operands to be ... promoted to legal types without changing the type of the vector. This is following a suggestion from Duncan (http://lists.cs.uiuc.edu/pipermail/llvmdev/2009-February/019923.html). The transformation that used to be done during type legalization is now postponed to DAG legalization. This allows the BUILD_VECTORs to be optimized and potentially handled specially by target-specific code. It turns out that this is also consistent with an optimization done by the DAG combiner: a BUILD_VECTOR and INSERT_VECTOR_ELT may be combined by replacing one of the BUILD_VECTOR operands with the newly inserted element; but INSERT_VECTOR_ELT allows its scalar operand to be larger than the element type, with any extra high bits being implicitly truncated. The result is a BUILD_VECTOR where one of the operands has a type larger the the vector element type. Any code that operates on BUILD_VECTORs may now need to be aware of the potential type discrepancy between the vector element type and the BUILD_VECTOR operands. This patch updates all of the places that I could find to handle that case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68996 91177308-0d34-0410-b5e6-96231b3b80d8		2009-04-13 22:05:19 +00:00
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Analysis	use higher level APIs.	2009-04-03 00:02:39 +00:00
Archive	Add the private linkage.	2009-01-15 20:18:42 +00:00
AsmParser	Fix warning in .ll parser, detect and reject available_externally on function	2009-04-13 07:02:02 +00:00
Bitcode	Add a new "available_externally" linkage type. This is intended	2009-04-13 05:44:34 +00:00
CodeGen	Change SelectionDAG type legalization to allow BUILD_VECTOR operands to be	2009-04-13 22:05:19 +00:00
CompilerDriver	-write-graph now can be used with -o.	2009-03-27 12:57:14 +00:00
Debugger	Oops...I committed too much.	2009-03-13 04:39:26 +00:00
ExecutionEngine	Link against libffi if available, fall back to "no external calls from	2009-04-13 04:26:06 +00:00
Linker	Add a new "available_externally" linkage type. This is intended	2009-04-13 05:44:34 +00:00
Support	Remove AllowInverse: it leaks memory and is not the right	2009-04-08 03:43:51 +00:00
System	fix PR3965:SIGINT handler not restored after calling ParseAST(),	2009-04-12 23:33:13 +00:00
Target	Rename COPY_TO_SUBCLASS to COPY_TO_REGCLASS, and generalize	2009-04-13 21:06:25 +00:00
Transforms	eliminate unneeded parens.	2009-04-13 05:38:23 +00:00
VMCore	Add a new "available_externally" linkage type. This is intended	2009-04-13 05:44:34 +00:00
Makefile	Reorganize llvmc code.	2009-03-02 09:01:14 +00:00