On Tue, Feb 12, 2013 at 06:13:24PM +0100, Christian König wrote:
> From: Christian König <christian.koe...@amd.com>
>
> Signed-off-by: Christian König <christian.koe...@amd.com>
> ---
> lib/Target/R600/SIInstrInfo.td | 4 ++++
> lib/Target/R600/SIInstructions.td | 5 +++++
> 2 files changed, 9 insertions(+)
>
> diff --git a/lib/Target/R600/SIInstrInfo.td b/lib/Target/R600/SIInstrInfo.td
> index efc6015..8c4e5af 100644
> --- a/lib/Target/R600/SIInstrInfo.td
> +++ b/lib/Target/R600/SIInstrInfo.td
> @@ -40,6 +40,10 @@ def IMM12bit : ImmLeaf <
> [{return isUInt<12>(Imm);}]
> >;
>
> +class InlineImm <ValueType vt> : ImmLeaf <vt, [{
> + return -16 <= Imm && Imm <= 64;
> +}]>;
> +
I don't understand what this is checking for:
-16 <= Imm && Imm <= 64
Can you explain this?
> class InstSI <dag outs, dag ins, string asm, list<dag> pattern> :
> AMDGPUInst<outs, ins, asm, pattern> {
>
> diff --git a/lib/Target/R600/SIInstructions.td
> b/lib/Target/R600/SIInstructions.td
> index f7d5cbf..19ea414 100644
> --- a/lib/Target/R600/SIInstructions.td
> +++ b/lib/Target/R600/SIInstructions.td
> @@ -1290,6 +1290,11 @@ def : Pat <
> (S_MOV_B32 fpimm:$imm)
> >;
>
> +def : Pat <
> + (i64 InlineImm<i64>:$imm),
> + (S_MOV_B64 InlineImm<i64>:$imm)
> +>;
> +
> // i64 immediates aren't supported in hardware, split it into two 32bit
> values
> def : Pat <
> (i64 imm:$imm),
> --
> 1.7.9.5
>
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