diff options
| author | Tom Stellard <[email protected]> | 2012-06-06 13:24:48 -0400 |
|---|---|---|
| committer | Tom Stellard <[email protected]> | 2012-06-06 20:51:00 -0400 |
| commit | 5f3f63b76d36b752d7d98c04ab044b5a961b5593 (patch) | |
| tree | 039dd0a2daac157e4747434da78f55369c140e60 | |
| parent | 0c9f5f22d5cf3cad01ee3685116011ff7ff67140 (diff) | |
radeon/llvm: Emulate RECIP_UINT instruction on Cayman
| -rw-r--r-- | src/gallium/drivers/radeon/R600CodeEmitter.cpp | 2 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/R600Instructions.td | 15 |
2 files changed, 13 insertions, 4 deletions
diff --git a/src/gallium/drivers/radeon/R600CodeEmitter.cpp b/src/gallium/drivers/radeon/R600CodeEmitter.cpp index 3b7ca2c2398..3042f38af8a 100644 --- a/src/gallium/drivers/radeon/R600CodeEmitter.cpp +++ b/src/gallium/drivers/radeon/R600CodeEmitter.cpp @@ -172,6 +172,8 @@ bool R600CodeEmitter::runOnMachineFunction(MachineFunction &MF) { emitFCInstr(MI); } else if (isReduction || isVector || isCube) { isLast = false; + // XXX: On Cayman, some (all?) of the vector instructions only need + // to fill the first three slots. for (currentElement = 0; currentElement < 4; currentElement++) { isLast = (currentElement == 3); emitALUInstr(MI); diff --git a/src/gallium/drivers/radeon/R600Instructions.td b/src/gallium/drivers/radeon/R600Instructions.td index 617961a20c0..794eaef6ff6 100644 --- a/src/gallium/drivers/radeon/R600Instructions.td +++ b/src/gallium/drivers/radeon/R600Instructions.td @@ -795,10 +795,13 @@ class TRIG_HELPER_r700 <InstR600 trig_inst>: Pat < let Predicates = [isEG] in { +def RECIP_IEEE_eg : RECIP_IEEE_Common<0x86>; + def MULLO_INT_eg : MULLO_INT_Common<0x8F>; def MULHI_INT_eg : MULHI_INT_Common<0x90>; def MULLO_UINT_eg : MULLO_UINT_Common<0x91>; def MULHI_UINT_eg : MULHI_UINT_Common<0x92>; +def RECIP_UINT_eg : RECIP_UINT_Common<0x94>; } // End Predicates = [isEG] @@ -825,12 +828,10 @@ class TRIG_eg <InstR600 trig, Intrinsic intr> : Pat< def LOG_CLAMPED_eg : LOG_CLAMPED_Common<0x82>; def LOG_IEEE_eg : LOG_IEEE_Common<0x83>; def RECIP_CLAMPED_eg : RECIP_CLAMPED_Common<0x84>; - def RECIP_IEEE_eg : RECIP_IEEE_Common<0x86>; def RECIPSQRT_CLAMPED_eg : RECIPSQRT_CLAMPED_Common<0x87>; def RECIPSQRT_IEEE_eg : RECIPSQRT_IEEE_Common<0x89>; def SIN_eg : SIN_Common<0x8D>; def COS_eg : COS_Common<0x8E>; - def RECIP_UINT_eg : RECIP_UINT_Common<0x94>; def DOT4_eg : DOT4_Common<0xBE>; def CUBE_eg : CUBE_Common<0xC0>; @@ -909,6 +910,8 @@ let Predicates = [isCayman] in { let isVector = 1 in { +def RECIP_IEEE_cm : RECIP_IEEE_Common<0x86>; + def MULLO_INT_cm : MULLO_INT_Common<0x8F>; def MULHI_INT_cm : MULHI_INT_Common<0x90>; def MULLO_UINT_cm : MULLO_UINT_Common<0x91>; @@ -916,8 +919,12 @@ def MULHI_UINT_cm : MULHI_UINT_Common<0x92>; } // End isVector = 1 -/* XXX: I'm not sure if this opcode is correct. */ -def RECIP_UINT_cm : RECIP_UINT_Common<0x77>; +// RECIP_UINT emulation for Cayman +def : Pat < + (AMDGPUurecip R600_Reg32:$src0), + (FLT_TO_UINT_eg (MUL_IEEE (RECIP_IEEE_cm (UINT_TO_FLT_eg R600_Reg32:$src0)), + (MOV_IMM_I32 (i32 ALU_LITERAL_X), 0x4f800000))) +>; } // End isCayman |