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| author | Christopher Lamb <christopher.lamb@gmail.com> | 2007-12-11 08:59:05 +0000 |
|---|---|---|
| committer | Christopher Lamb <christopher.lamb@gmail.com> | 2007-12-11 08:59:05 +0000 |
| commit | 44d62f61323cef4a7f88fb4a6de233cdcafebe8a (patch) | |
| tree | 6a39f01b605f8fe68fa2e0c69f4e4c903c558967 /test/Assembler | |
| parent | b93bdf6e2e9f024f504f10c4f01cc54bf1a7ca80 (diff) | |
| download | external_llvm-44d62f61323cef4a7f88fb4a6de233cdcafebe8a.zip external_llvm-44d62f61323cef4a7f88fb4a6de233cdcafebe8a.tar.gz external_llvm-44d62f61323cef4a7f88fb4a6de233cdcafebe8a.tar.bz2 | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44858 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Assembler')
| -rw-r--r-- | test/Assembler/2007-12-11-AddressSpaces.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/Assembler/2007-12-11-AddressSpaces.ll b/test/Assembler/2007-12-11-AddressSpaces.ll new file mode 100644 index 0000000..91f6d93 --- /dev/null +++ b/test/Assembler/2007-12-11-AddressSpaces.ll @@ -0,0 +1,25 @@ +; 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 + + %struct.mystruct = type { i32, i32 addrspace(33)*, i32, i32 addrspace(33)* } +@input = global %struct.mystruct zeroinitializer addrspace(42) ; <%struct.mystruct addrspace(42)*> [#uses=1] +@output = global %struct.mystruct zeroinitializer addrspace(66) ; <%struct.mystruct addrspace(66)*> [#uses=1] +@y = global i32 addrspace(11)* addrspace(22)* null addrspace(33) ; <i32 addrspace(11)* addrspace(22)* addrspace(33)*> [#uses=1] + +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 +} |