[Mesa-dev] [PATCH] R600/SI: Support byval arguments
Tom Stellard
tom at stellard.net
Thu Oct 10 15:19:43 CEST 2013
On Thu, Oct 10, 2013 at 12:04:16AM +0200, Vincent Lejeune wrote:
What is the purpose of this change?
-Tom
> ---
> lib/Target/R600/AMDGPUCallingConv.td | 7 ++++++-
> lib/Target/R600/SIISelLowering.cpp | 3 ++-
> 2 files changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/lib/Target/R600/AMDGPUCallingConv.td b/lib/Target/R600/AMDGPUCallingConv.td
> index d26be32..a194e6d 100644
> --- a/lib/Target/R600/AMDGPUCallingConv.td
> +++ b/lib/Target/R600/AMDGPUCallingConv.td
> @@ -33,7 +33,12 @@ def CC_SI : CallingConv<[
> VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
> VGPR16, VGPR17, VGPR18, VGPR19, VGPR20, VGPR21, VGPR22, VGPR23,
> VGPR24, VGPR25, VGPR26, VGPR27, VGPR28, VGPR29, VGPR30, VGPR31
> - ]>>>
> + ]>>>,
> +
> + CCIfByVal<CCIfType<[i64] , CCAssignToRegWithShadow<
> + [ SGPR0, SGPR2, SGPR4, SGPR6, SGPR8, SGPR10, SGPR12, SGPR14 ],
> + [ SGPR1, SGPR3, SGPR5, SGPR7, SGPR9, SGPR11, SGPR13, SGPR15 ]
> + >>>
>
> ]>;
>
> diff --git a/lib/Target/R600/SIISelLowering.cpp b/lib/Target/R600/SIISelLowering.cpp
> index 2174753..cd18154 100644
> --- a/lib/Target/R600/SIISelLowering.cpp
> +++ b/lib/Target/R600/SIISelLowering.cpp
> @@ -158,7 +158,8 @@ SDValue SITargetLowering::LowerFormalArguments(
> const ISD::InputArg &Arg = Ins[i];
>
> // First check if it's a PS input addr
> - if (Info->ShaderType == ShaderType::PIXEL && !Arg.Flags.isInReg()) {
> + if (Info->ShaderType == ShaderType::PIXEL && !Arg.Flags.isInReg() &&
> + !Arg.Flags.isByVal()) {
>
> assert((PSInputNum <= 15) && "Too many PS inputs!");
>
> --
> 1.8.3.1
>
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