Module: Mesa Branch: master Commit: c17ddcb4b4240542832fba72b5810039dd245fc9 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=c17ddcb4b4240542832fba72b5810039dd245fc9
Author: Ilia Mirkin <[email protected]> Date: Sat Apr 21 13:08:51 2018 -0400 nvc0/ir: all short immediates are sign-extended, adjust LIMM test Some analysis suggests that all short immediates are sign-extended. The insnCanLoad logic already accounted for this, but we could still pick the wrong form when emitting actual instructions that support both short and long immediates (with the long form usually having additional restrictions that insnCanLoad should be aware of). This also reverses a bunch of commits that had previously "worked around" this issue in various emitters: 9c63224540ef: gm107/ir: make use of ADD32I for all immediates 83a4f28dc27b: gm107/ir: make use of LOP32I for all immediates b84c97587b4a: gm107/ir: make use of IMUL32I for all immediates d30768025a22: gk110/ir: make use of IMUL32I for all immediates as well as the original import for UMUL in the nvc0 emitter. Reported-by: Karol Herbst <[email protected]> Signed-off-by: Ilia Mirkin <[email protected]> Tested-by: Karol Herbst <[email protected]> --- .../drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp | 10 +++++++--- .../drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp | 21 +++++++++------------ .../drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp | 12 ++++++++---- 3 files changed, 24 insertions(+), 19 deletions(-) diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp index 370427d0d1..647d1a5d0e 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp @@ -207,7 +207,11 @@ bool CodeEmitterGK110::isLIMM(const ValueRef& ref, DataType ty, bool mod) { const ImmediateValue *imm = ref.get()->asImm(); - return imm && (imm->reg.data.u32 & ((ty == TYPE_F32) ? 0xfff : 0xfff00000)); + if (ty == TYPE_F32) + return imm && imm->reg.data.u32 & 0xfff; + else + return imm && (imm->reg.data.s32 > 0x7ffff || + imm->reg.data.s32 < -0x80000); } void @@ -342,7 +346,7 @@ CodeEmitterGK110::setShortImmediate(const Instruction *i, const int s) code[1] |= ((u64 & 0x7fe0000000000000ULL) >> 53); code[1] |= ((u64 & 0x8000000000000000ULL) >> 36); } else { - assert((u32 & 0xfff00000) == 0 || (u32 & 0xfff00000) == 0xfff00000); + assert((u32 & 0xfff80000) == 0 || (u32 & 0xfff80000) == 0xfff80000); code[0] |= (u32 & 0x001ff) << 23; code[1] |= (u32 & 0x7fe00) >> 9; code[1] |= (u32 & 0x80000) << 8; @@ -633,7 +637,7 @@ CodeEmitterGK110::emitIMUL(const Instruction *i) assert(!i->src(0).mod.neg() && !i->src(1).mod.neg()); assert(!i->src(0).mod.abs() && !i->src(1).mod.abs()); - if (i->src(1).getFile() == FILE_IMMEDIATE) { + if (isLIMM(i->src(1), TYPE_S32)) { emitForm_L(i, 0x280, 2, Modifier(0)); if (i->subOp == NV50_IR_SUBOP_MUL_HIGH) diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp index fafece81ad..1f6189890c 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp @@ -321,14 +321,10 @@ CodeEmitterGM107::longIMMD(const ValueRef &ref) { if (ref.getFile() == FILE_IMMEDIATE) { const ImmediateValue *imm = ref.get()->asImm(); - if (isFloatType(insn->sType)) { - if ((imm->reg.data.u32 & 0x00000fff) != 0x00000000) - return true; - } else { - if ((imm->reg.data.u32 & 0xfff00000) != 0x00000000 && - (imm->reg.data.u32 & 0xfff00000) != 0xfff00000) - return true; - } + if (isFloatType(insn->sType)) + return imm->reg.data.u32 & 0xfff; + else + return imm->reg.data.s32 > 0x7ffff || imm->reg.data.s32 < -0x80000; } return false; } @@ -346,8 +342,9 @@ CodeEmitterGM107::emitIMMD(int pos, int len, const ValueRef &ref) } else if (insn->sType == TYPE_F64) { assert(!(imm->reg.data.u64 & 0x00000fffffffffffULL)); val = imm->reg.data.u64 >> 44; + } else { + assert(!(val & 0xfff80000) || (val & 0xfff80000) == 0xfff80000); } - assert(!(val & 0xfff00000) || (val & 0xfff00000) == 0xfff00000); emitField( 56, 1, (val & 0x80000) >> 19); emitField(pos, len, (val & 0x7ffff)); } else { @@ -1658,7 +1655,7 @@ CodeEmitterGM107::emitLOP() break; } - if (insn->src(1).getFile() != FILE_IMMEDIATE) { + if (!longIMMD(insn->src(1))) { switch (insn->src(1).getFile()) { case FILE_GPR: emitInsn(0x5c400000); @@ -1731,7 +1728,7 @@ CodeEmitterGM107::emitNOT() void CodeEmitterGM107::emitIADD() { - if (insn->src(1).getFile() != FILE_IMMEDIATE) { + if (!longIMMD(insn->src(1))) { switch (insn->src(1).getFile()) { case FILE_GPR: emitInsn(0x5c100000); @@ -1773,7 +1770,7 @@ CodeEmitterGM107::emitIADD() void CodeEmitterGM107::emitIMUL() { - if (insn->src(1).getFile() != FILE_IMMEDIATE) { + if (!longIMMD(insn->src(1))) { switch (insn->src(1).getFile()) { case FILE_GPR: emitInsn(0x5c380000); diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp index be7ac18222..d85fdda56f 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp @@ -213,7 +213,11 @@ bool CodeEmitterNVC0::isLIMM(const ValueRef& ref, DataType ty) { const ImmediateValue *imm = ref.get()->asImm(); - return imm && (imm->reg.data.u32 & ((ty == TYPE_F32) ? 0xfff : 0xfff00000)); + if (ty == TYPE_F32) + return imm && imm->reg.data.u32 & 0xfff; + else + return imm && (imm->reg.data.s32 > 0x7ffff || + imm->reg.data.s32 < -0x80000); } void @@ -352,7 +356,7 @@ CodeEmitterNVC0::setImmediate(const Instruction *i, const int s) } else if ((code[0] & 0xf) == 0x3 || (code[0] & 0xf) == 4) { // integer immediate - assert((u32 & 0xfff00000) == 0 || (u32 & 0xfff00000) == 0xfff00000); + assert((u32 & 0xfff80000) == 0 || (u32 & 0xfff80000) == 0xfff80000); assert(!(code[1] & 0xc000)); u32 &= 0xfffff; code[0] |= (u32 & 0x3f) << 26; @@ -641,7 +645,7 @@ void CodeEmitterNVC0::emitUMUL(const Instruction *i) { if (i->encSize == 8) { - if (i->src(1).getFile() == FILE_IMMEDIATE) { + if (isLIMM(i->src(1), TYPE_U32)) { emitForm_A(i, HEX64(10000000, 00000002)); } else { emitForm_A(i, HEX64(50000000, 00000003)); @@ -2069,7 +2073,7 @@ CodeEmitterNVC0::emitMOV(const Instruction *i) assert(!(imm & 0x000fffff)); code[0] = 0x00000318 | imm; } else { - assert(imm < 0x800 || ((int32_t)imm >= -0x800)); + assert(imm < 0x800 && ((int32_t)imm >= -0x800)); code[0] = 0x00000118 | (imm << 20); } } else { _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
