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Diffstat (limited to 'lib/Target/MBlaze/TODO')
-rw-r--r-- | lib/Target/MBlaze/TODO | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/lib/Target/MBlaze/TODO b/lib/Target/MBlaze/TODO deleted file mode 100644 index 737f111..0000000 --- a/lib/Target/MBlaze/TODO +++ /dev/null @@ -1,26 +0,0 @@ -* Writing out ELF files is close to working but the following needs to - be examined more closely: - - ELF files are written with the wrong E_MACHINE value because - ELFObjectWriter::WriteHeader function does not yet support - target specific E_MACHINE values. - - ELF relocation records are incorrect because the function - ELFObjectWriter::RecordRelocation is hard coded for X86/X86-64. - - Relocations use 2-byte / 4-byte to terminology in reference to - the size of the immediate value being changed. The Xilinx - terminology seems to be (???) 4-byte / 8-byte in reference - to the number of bytes of instructions that are being changed. - - BRLID and like instructions are always assumed to use a 4-byte - immediate value for the relocation and BEQID and like instructions - are always assumed to use a 2-byte immediate value for the relocation. - I think this means that conditional branches like BEQID can only - branch += 32768 bytes (~8192 instructions). We should allow conditional - branches to use 4-byte relocations but I'm not sure how to do that - right now. - -* Code generation seems to work relatively well now but the following - needs to be examined more closely: - - The stack layout needs to be examined to make sure it meets - the standard, especially in regards to var arg functions. - - The delay slot filler is ad hoc but seems to work. Load and - store instructions were prevented from being moved to delay - slots but I'm not sure that is necessary. |