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llvm-mirror/test/Assembler/2007-12-11-AddressSpaces.ll

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Don't redirect stderr when it isn't needed. llvm-svn: 45033
2007-12-14 16:15:11 +01:00
; RUN: llvm-as < %s | llvm-dis | grep {addrspace(33)} | count 7
; RUN: llvm-as < %s | llvm-dis | grep {addrspace(42)} | count 2
; RUN: llvm-as < %s | llvm-dis | grep {addrspace(66)} | count 2
; RUN: llvm-as < %s | llvm-dis | grep {addrspace(11)} | count 6
; RUN: llvm-as < %s | llvm-dis | grep {addrspace(22)} | count 5
Implement address space attribute for LLVM pointer types. Address spaces are regions of memory that have a target specific relationship, as described in the Embedded C Technical Report. This also implements the 2007-12-11-AddressSpaces test, which demonstrates how address space attributes can be used in LLVM IR. In addition, this patch changes the bitcode signature for stores (in a backwards compatible manner), such that the pointer type, rather than the pointee type, is encoded. This permits type information in the pointer (e.g. address space) to be preserved for stores. LangRef updates are forthcoming. llvm-svn: 44858
2007-12-11 09:59:05 +01:00
%struct.mystruct = type { i32, i32 addrspace(33)*, i32, i32 addrspace(33)* }
Reimplement the old and horrible bison parser for .ll files with a nice and clean recursive descent parser. This change has a couple of ramifications: 1. The parser code is about 400 lines shorter (in what we maintain, not including what is autogenerated). 2. The code should be significantly faster than the old code because we don't have to work around bison's poor handling of datatypes with ctors/dtors. This also makes the code much more resistant to memory leaks. 3. We now get caret diagnostics from the .ll parser, woo. 4. The actual diagnostics emited from the parser are completely different so a bunch of testcases had to be updated. 5. I now disallow "%ty = type opaque %ty = type i32". There was no good reason to support this, it was just an accident of the old implementation. I have no reason to think that anyone is actually using this. 6. The syntax for sticking a global variable has changed to make it unambiguous. I don't think anyone is depending on this since only clang supports this and it is not solid yet, so I'm not worried about anything breaking. 7. This gets rid of the last use of bison, and along with it the .cvs files. I'll prune this from the makefiles as a subsequent commit. There are a few minor cleanups that can be done after this commit (suggestions welcome!) but this passes dejagnu testing and is ready for its time in the limelight. llvm-svn: 61558
2009-01-02 08:01:27 +01:00
@input = weak addrspace(42) global %struct.mystruct zeroinitializer ; <%struct.mystruct addrspace(42)*> [#uses=1]
@output = addrspace(66) global %struct.mystruct zeroinitializer ; <%struct.mystruct addrspace(66)*> [#uses=1]
@y = external addrspace(33) global i32 addrspace(11)* addrspace(22)* ; <i32 addrspace(11)* addrspace(22)* addrspace(33)*> [#uses=1]
Implement address space attribute for LLVM pointer types. Address spaces are regions of memory that have a target specific relationship, as described in the Embedded C Technical Report. This also implements the 2007-12-11-AddressSpaces test, which demonstrates how address space attributes can be used in LLVM IR. In addition, this patch changes the bitcode signature for stores (in a backwards compatible manner), such that the pointer type, rather than the pointee type, is encoded. This permits type information in the pointer (e.g. address space) to be preserved for stores. LangRef updates are forthcoming. llvm-svn: 44858
2007-12-11 09:59:05 +01:00
define void @foo() {
entry:
%tmp1 = load i32 addrspace(33)* addrspace(42)* getelementptr (%struct.mystruct addrspace(42)* @input, i32 0, i32 3), align 4 ; <i32 addrspace(33)*> [#uses=1]
store i32 addrspace(33)* %tmp1, i32 addrspace(33)* addrspace(66)* getelementptr (%struct.mystruct addrspace(66)* @output, i32 0, i32 1), align 4
ret void
}
define i32 addrspace(11)* @bar(i32 addrspace(11)* addrspace(22)* addrspace(33)* %x) {
entry:
%tmp1 = load i32 addrspace(11)* addrspace(22)* addrspace(33)* @y, align 4 ; <i32 addrspace(11)* addrspace(22)*> [#uses=2]
store i32 addrspace(11)* addrspace(22)* %tmp1, i32 addrspace(11)* addrspace(22)* addrspace(33)* %x, align 4
%tmp5 = load i32 addrspace(11)* addrspace(22)* %tmp1, align 4 ; <i32 addrspace(11)*> [#uses=1]
ret i32 addrspace(11)* %tmp5
}
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