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authorTim Rowley <[email protected]>2017-11-08 14:07:33 -0600
committerTim Rowley <[email protected]>2017-11-20 13:51:01 -0600
commit2e244c7168a1130a18c8d8a901161db9b6cbaac3 (patch)
treeb98b5db0ce8b9b335237ab81ea8b211490c06588 /src/gallium
parent44025def06a8b8d1c019f611079a003964ea7511 (diff)
swr/rast: Simplify GATHER* jit builder api
General cleanup, and prep work for possibly moving to llvm masked gather intrinsic. Reviewed-by: Bruce Cherniak <[email protected]>
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp32
-rw-r--r--src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h6
-rw-r--r--src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp56
-rw-r--r--src/gallium/drivers/swr/swr_shader.cpp2
4 files changed, 48 insertions, 48 deletions
diff --git a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp
index daa9cb1ec11..bd3a52566d6 100644
--- a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp
+++ b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp
@@ -554,7 +554,7 @@ namespace SwrJit
/// @param vIndices - SIMD wide value of VB byte offsets
/// @param vMask - SIMD wide mask that controls whether to access memory or the src values
/// @param scale - value to scale indices by
- Value *Builder::GATHERPS(Value* vSrc, Value* pBase, Value* vIndices, Value* vMask, Value* scale)
+ Value *Builder::GATHERPS(Value* vSrc, Value* pBase, Value* vIndices, Value* vMask, uint8_t scale)
{
Value* vGather;
@@ -563,7 +563,7 @@ namespace SwrJit
{
// force mask to <N x float>, required by vgather
vMask = BITCAST(vMask, mSimdFP32Ty);
- vGather = VGATHERPS(vSrc,pBase,vIndices,vMask,scale);
+ vGather = VGATHERPS(vSrc,pBase,vIndices,vMask,C(scale));
}
else
{
@@ -574,7 +574,7 @@ namespace SwrJit
STORE(vSrc, vSrcPtr);
vGather = VUNDEF_F();
- Value *vScaleVec = VBROADCAST(Z_EXT(scale,mInt32Ty));
+ Value *vScaleVec = VIMMED1((uint32_t)scale);
Value *vOffsets = MUL(vIndices,vScaleVec);
Value *mask = MASK(vMask);
for(uint32_t i = 0; i < mVWidth; ++i)
@@ -606,14 +606,14 @@ namespace SwrJit
/// @param vIndices - SIMD wide value of VB byte offsets
/// @param vMask - SIMD wide mask that controls whether to access memory or the src values
/// @param scale - value to scale indices by
- Value *Builder::GATHERDD(Value* vSrc, Value* pBase, Value* vIndices, Value* vMask, Value* scale)
+ Value *Builder::GATHERDD(Value* vSrc, Value* pBase, Value* vIndices, Value* vMask, uint8_t scale)
{
Value* vGather;
// use avx2 gather instruction if available
if(JM()->mArch.AVX2())
{
- vGather = VGATHERDD(vSrc, pBase, vIndices, vMask, scale);
+ vGather = VGATHERDD(vSrc, pBase, vIndices, vMask, C(scale));
}
else
{
@@ -624,7 +624,7 @@ namespace SwrJit
STORE(vSrc, vSrcPtr);
vGather = VUNDEF_I();
- Value *vScaleVec = VBROADCAST(Z_EXT(scale, mInt32Ty));
+ Value *vScaleVec = VIMMED1((uint32_t)scale);
Value *vOffsets = MUL(vIndices, vScaleVec);
Value *mask = MASK(vMask);
for(uint32_t i = 0; i < mVWidth; ++i)
@@ -656,14 +656,14 @@ namespace SwrJit
/// @param vIndices - SIMD wide value of VB byte offsets
/// @param vMask - SIMD wide mask that controls whether to access memory or the src values
/// @param scale - value to scale indices by
- Value *Builder::GATHERPD(Value* vSrc, Value* pBase, Value* vIndices, Value* vMask, Value* scale)
+ Value *Builder::GATHERPD(Value* vSrc, Value* pBase, Value* vIndices, Value* vMask, uint8_t scale)
{
Value* vGather;
// use avx2 gather instruction if available
if(JM()->mArch.AVX2())
{
- vGather = VGATHERPD(vSrc, pBase, vIndices, vMask, scale);
+ vGather = VGATHERPD(vSrc, pBase, vIndices, vMask, C(scale));
}
else
{
@@ -674,7 +674,7 @@ namespace SwrJit
STORE(vSrc, vSrcPtr);
vGather = UndefValue::get(VectorType::get(mDoubleTy, 4));
- Value *vScaleVec = VECTOR_SPLAT(4, Z_EXT(scale,mInt32Ty));
+ Value *vScaleVec = VECTOR_SPLAT(4, C((uint32_t)scale));
Value *vOffsets = MUL(vIndices,vScaleVec);
Value *mask = MASK(vMask);
for(uint32_t i = 0; i < mVWidth/2; ++i)
@@ -1016,7 +1016,7 @@ namespace SwrJit
// save mask as it is zero'd out after each gather
vMask = mask;
- vGatherResult[0] = GATHERPS(vGatherMaskedVal, pSrcBase, byteOffsets, vMask, C((char)1));
+ vGatherResult[0] = GATHERPS(vGatherMaskedVal, pSrcBase, byteOffsets, vMask);
// e.g. result of first 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// xyxy xyxy xyxy xyxy xyxy xyxy xyxy xyxy
@@ -1029,7 +1029,7 @@ namespace SwrJit
pSrcBase = GEP(pSrcBase, C((char)4));
vMask = mask;
- vGatherResult[1] = GATHERPS(vGatherMaskedVal, pSrcBase, byteOffsets, vMask, C((char)1));
+ vGatherResult[1] = GATHERPS(vGatherMaskedVal, pSrcBase, byteOffsets, vMask);
// e.g. result of second 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// zwzw zwzw zwzw zwzw zwzw zwzw zwzw zwzw
@@ -1060,7 +1060,7 @@ namespace SwrJit
Value *vMask = mask;
// Gather a SIMD of components
- vGatherComponents[swizzleIndex] = GATHERPS(vGatherComponents[swizzleIndex], pSrcBase, byteOffsets, vMask, C((char)1));
+ vGatherComponents[swizzleIndex] = GATHERPS(vGatherComponents[swizzleIndex], pSrcBase, byteOffsets, vMask);
// offset base to the next component to gather
pSrcBase = GEP(pSrcBase, C((char)4));
@@ -1081,7 +1081,7 @@ namespace SwrJit
case 8:
{
Value* vGatherMaskedVal = VIMMED1((int32_t)0);
- Value* vGatherResult = GATHERDD(vGatherMaskedVal, pSrcBase, byteOffsets, mask, C((char)1));
+ Value* vGatherResult = GATHERDD(vGatherMaskedVal, pSrcBase, byteOffsets, mask);
// e.g. result of an 8x32bit integer gather for 8bit components
// 256i - 0 1 2 3 4 5 6 7
// xyzw xyzw xyzw xyzw xyzw xyzw xyzw xyzw
@@ -1102,7 +1102,7 @@ namespace SwrJit
// save mask as it is zero'd out after each gather
vMask = mask;
- vGatherResult[0] = GATHERDD(vGatherMaskedVal, pSrcBase, byteOffsets, vMask, C((char)1));
+ vGatherResult[0] = GATHERDD(vGatherMaskedVal, pSrcBase, byteOffsets, vMask);
// e.g. result of first 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// xyxy xyxy xyxy xyxy xyxy xyxy xyxy xyxy
@@ -1115,7 +1115,7 @@ namespace SwrJit
pSrcBase = GEP(pSrcBase, C((char)4));
vMask = mask;
- vGatherResult[1] = GATHERDD(vGatherMaskedVal, pSrcBase, byteOffsets, vMask, C((char)1));
+ vGatherResult[1] = GATHERDD(vGatherMaskedVal, pSrcBase, byteOffsets, vMask);
// e.g. result of second 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// zwzw zwzw zwzw zwzw zwzw zwzw zwzw zwzw
@@ -1147,7 +1147,7 @@ namespace SwrJit
Value *vMask = mask;
// Gather a SIMD of components
- vGatherComponents[swizzleIndex] = GATHERDD(vGatherComponents[swizzleIndex], pSrcBase, byteOffsets, vMask, C((char)1));
+ vGatherComponents[swizzleIndex] = GATHERDD(vGatherComponents[swizzleIndex], pSrcBase, byteOffsets, vMask);
// offset base to the next component to gather
pSrcBase = GEP(pSrcBase, C((char)4));
diff --git a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h
index d9ff4a21567..9aa24148d38 100644
--- a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h
+++ b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h
@@ -112,15 +112,15 @@ Value *MASKLOADD(Value* src, Value* mask);
void Gather4(const SWR_FORMAT format, Value* pSrcBase, Value* byteOffsets,
Value* mask, Value* vGatherComponents[], bool bPackedOutput);
-Value *GATHERPS(Value* src, Value* pBase, Value* indices, Value* mask, Value* scale);
+Value *GATHERPS(Value* src, Value* pBase, Value* indices, Value* mask, uint8_t scale = 1);
void GATHER4PS(const SWR_FORMAT_INFO &info, Value* pSrcBase, Value* byteOffsets,
Value* mask, Value* vGatherComponents[], bool bPackedOutput);
-Value *GATHERDD(Value* src, Value* pBase, Value* indices, Value* mask, Value* scale);
+Value *GATHERDD(Value* src, Value* pBase, Value* indices, Value* mask, uint8_t scale = 1);
void GATHER4DD(const SWR_FORMAT_INFO &info, Value* pSrcBase, Value* byteOffsets,
Value* mask, Value* vGatherComponents[], bool bPackedOutput);
-Value *GATHERPD(Value* src, Value* pBase, Value* indices, Value* mask, Value* scale);
+Value *GATHERPD(Value* src, Value* pBase, Value* indices, Value* mask, uint8_t scale = 1);
void SCATTERPS(Value* pDst, Value* vSrc, Value* vOffsets, Value* vMask);
diff --git a/src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp b/src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp
index 062852e2d22..aa3fca4c358 100644
--- a/src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp
+++ b/src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp
@@ -723,7 +723,7 @@ void FetchJit::CreateGatherOddFormats(SWR_FORMAT format, Value* pMask, Value* pB
// only works if pixel size is <= 32bits
SWR_ASSERT(info.bpp <= 32);
- Value* pGather = GATHERDD(VIMMED1(0), pBase, pOffsets, pMask, C((char)1));
+ Value* pGather = GATHERDD(VIMMED1(0), pBase, pOffsets, pMask);
for (uint32_t comp = 0; comp < 4; ++comp)
{
@@ -1136,8 +1136,8 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
vMask = vGatherMask;
vMask2 = vGatherMask2;
- vGatherResult[0] = GATHERPS(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
- vGatherResult2[0] = GATHERPS(gatherSrc2, pStreamBase, vOffsets2, vMask2, C((char)1));
+ vGatherResult[0] = GATHERPS(gatherSrc, pStreamBase, vOffsets, vMask);
+ vGatherResult2[0] = GATHERPS(gatherSrc2, pStreamBase, vOffsets2, vMask2);
// e.g. result of first 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// xyxy xyxy xyxy xyxy xyxy xyxy xyxy xyxy
@@ -1152,8 +1152,8 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
vMask = vGatherMask;
vMask2 = vGatherMask2;
- vGatherResult[1] = GATHERPS(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
- vGatherResult2[1] = GATHERPS(gatherSrc2, pStreamBase, vOffsets2, vMask2, C((char)1));
+ vGatherResult[1] = GATHERPS(gatherSrc, pStreamBase, vOffsets, vMask);
+ vGatherResult2[1] = GATHERPS(gatherSrc2, pStreamBase, vOffsets2, vMask2);
// e.g. result of second 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// zwzw zwzw zwzw zwzw zwzw zwzw zwzw zwzw
@@ -1182,7 +1182,7 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
// save mask as it is zero'd out after each gather
vMask = vGatherMask;
- vGatherResult[0] = GATHERPS(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
+ vGatherResult[0] = GATHERPS(gatherSrc, pStreamBase, vOffsets, vMask);
// e.g. result of first 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// xyxy xyxy xyxy xyxy xyxy xyxy xyxy xyxy
@@ -1195,7 +1195,7 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
pStreamBase = GEP(pStreamBase, C((char)4));
vMask = vGatherMask;
- vGatherResult[1] = GATHERPS(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
+ vGatherResult[1] = GATHERPS(gatherSrc, pStreamBase, vOffsets, vMask);
// e.g. result of second 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// zwzw zwzw zwzw zwzw zwzw zwzw zwzw zwzw
@@ -1238,8 +1238,8 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
// Right shift the offset by a bit and then scale by 2 to remove the sign extension.
Value *vShiftedOffsets = VPSRLI(vOffsets, C(1));
Value *vShiftedOffsets2 = VPSRLI(vOffsets2, C(1));
- vVertexElements[currentVertexElement] = GATHERPS(gatherSrc, pStreamBase, vShiftedOffsets, vMask, C((char)2));
- vVertexElements2[currentVertexElement] = GATHERPS(gatherSrc2, pStreamBase, vShiftedOffsets2, vMask2, C((char)2));
+ vVertexElements[currentVertexElement] = GATHERPS(gatherSrc, pStreamBase, vShiftedOffsets, vMask, 2);
+ vVertexElements2[currentVertexElement] = GATHERPS(gatherSrc2, pStreamBase, vShiftedOffsets2, vMask2, 2);
currentVertexElement += 1;
}
@@ -1298,7 +1298,7 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
// But, we know that elements must be aligned for FETCH. :)
// Right shift the offset by a bit and then scale by 2 to remove the sign extension.
Value* vShiftedOffsets = VPSRLI(vOffsets, C(1));
- vVertexElements[currentVertexElement++] = GATHERPS(gatherSrc, pStreamBase, vShiftedOffsets, vMask, C((char)2));
+ vVertexElements[currentVertexElement++] = GATHERPS(gatherSrc, pStreamBase, vShiftedOffsets, vMask, 2);
}
else
{
@@ -1353,10 +1353,10 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
Value *vZeroDouble = VECTOR_SPLAT(4, ConstantFP::get(IRB()->getDoubleTy(), 0.0f));
- Value* pGatherLo = GATHERPD(vZeroDouble, pStreamBase, vOffsetsLo, vMaskLo, C((char)1));
- Value* pGatherLo2 = GATHERPD(vZeroDouble, pStreamBase, vOffsetsLo2, vMaskLo2, C((char)1));
- Value* pGatherHi = GATHERPD(vZeroDouble, pStreamBase, vOffsetsHi, vMaskHi, C((char)1));
- Value* pGatherHi2 = GATHERPD(vZeroDouble, pStreamBase, vOffsetsHi2, vMaskHi2, C((char)1));
+ Value* pGatherLo = GATHERPD(vZeroDouble, pStreamBase, vOffsetsLo, vMaskLo);
+ Value* pGatherLo2 = GATHERPD(vZeroDouble, pStreamBase, vOffsetsLo2, vMaskLo2);
+ Value* pGatherHi = GATHERPD(vZeroDouble, pStreamBase, vOffsetsHi, vMaskHi);
+ Value* pGatherHi2 = GATHERPD(vZeroDouble, pStreamBase, vOffsetsHi2, vMaskHi2);
pGatherLo = VCVTPD2PS(pGatherLo);
pGatherLo2 = VCVTPD2PS(pGatherLo2);
@@ -1412,9 +1412,9 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
Value *vZeroDouble = VECTOR_SPLAT(4, ConstantFP::get(IRB()->getDoubleTy(), 0.0f));
Value* pGatherLo = GATHERPD(vZeroDouble,
- pStreamBase, vOffsetsLo, vMaskLo, C((char)1));
+ pStreamBase, vOffsetsLo, vMaskLo);
Value* pGatherHi = GATHERPD(vZeroDouble,
- pStreamBase, vOffsetsHi, vMaskHi, C((char)1));
+ pStreamBase, vOffsetsHi, vMaskHi);
pGatherLo = VCVTPD2PS(pGatherLo);
pGatherHi = VCVTPD2PS(pGatherHi);
@@ -1502,8 +1502,8 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
if (compMask)
{
#if USE_SIMD16_GATHERS
- Value* vGatherResult = GATHERDD(gatherSrc, pStreamBase, vOffsets, vGatherMask, C((char)1));
- Value* vGatherResult2 = GATHERDD(gatherSrc2, pStreamBase, vOffsets2, vGatherMask2, C((char)1));
+ Value* vGatherResult = GATHERDD(gatherSrc, pStreamBase, vOffsets, vGatherMask);
+ Value* vGatherResult2 = GATHERDD(gatherSrc2, pStreamBase, vOffsets2, vGatherMask2);
// e.g. result of an 8x32bit integer gather for 8bit components
// 256i - 0 1 2 3 4 5 6 7
// xyzw xyzw xyzw xyzw xyzw xyzw xyzw xyzw
@@ -1517,7 +1517,7 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
Shuffle8bpcGatherd(args, false); // outputs to vVertexElements ref
Shuffle8bpcGatherd(args2, true); // outputs to vVertexElements ref
#else
- Value* vGatherResult = GATHERDD(gatherSrc, pStreamBase, vOffsets, vGatherMask, C((char)1));
+ Value* vGatherResult = GATHERDD(gatherSrc, pStreamBase, vOffsets, vGatherMask);
// e.g. result of an 8x32bit integer gather for 8bit components
// 256i - 0 1 2 3 4 5 6 7
// xyzw xyzw xyzw xyzw xyzw xyzw xyzw xyzw
@@ -1550,8 +1550,8 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
vMask = vGatherMask;
vMask2 = vGatherMask2;
- vGatherResult[0] = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
- vGatherResult2[0] = GATHERDD(gatherSrc2, pStreamBase, vOffsets2, vMask2, C((char)1));
+ vGatherResult[0] = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask);
+ vGatherResult2[0] = GATHERDD(gatherSrc2, pStreamBase, vOffsets2, vMask2);
// e.g. result of first 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// xyxy xyxy xyxy xyxy xyxy xyxy xyxy xyxy
@@ -1566,8 +1566,8 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
vMask = vGatherMask;
vMask2 = vGatherMask2;
- vGatherResult[1] = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
- vGatherResult2[1] = GATHERDD(gatherSrc2, pStreamBase, vOffsets2, vMask2, C((char)1));
+ vGatherResult[1] = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask);
+ vGatherResult2[1] = GATHERDD(gatherSrc2, pStreamBase, vOffsets2, vMask2);
// e.g. result of second 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// zwzw zwzw zwzw zwzw zwzw zwzw zwzw zwzw
@@ -1595,7 +1595,7 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
// save mask as it is zero'd out after each gather
vMask = vGatherMask;
- vGatherResult[0] = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
+ vGatherResult[0] = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask);
// e.g. result of first 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// xyxy xyxy xyxy xyxy xyxy xyxy xyxy xyxy
@@ -1608,7 +1608,7 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
pStreamBase = GEP(pStreamBase, C((char)4));
vMask = vGatherMask;
- vGatherResult[1] = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
+ vGatherResult[1] = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask);
// e.g. result of second 8x32bit integer gather for 16bit components
// 256i - 0 1 2 3 4 5 6 7
// zwzw zwzw zwzw zwzw zwzw zwzw zwzw zwzw
@@ -1645,8 +1645,8 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
Value *vMask = vGatherMask;
Value *vMask2 = vGatherMask2;
- Value *pGather = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
- Value *pGather2 = GATHERDD(gatherSrc2, pStreamBase, vOffsets2, vMask2, C((char)1));
+ Value *pGather = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask);
+ Value *pGather2 = GATHERDD(gatherSrc2, pStreamBase, vOffsets2, vMask2);
if (conversionType == CONVERT_USCALED)
{
@@ -1675,7 +1675,7 @@ void FetchJit::JitGatherVertices(const FETCH_COMPILE_STATE &fetchState,
// save mask as it is zero'd out after each gather
Value *vMask = vGatherMask;
- Value* pGather = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask, C((char)1));
+ Value* pGather = GATHERDD(gatherSrc, pStreamBase, vOffsets, vMask);
if (conversionType == CONVERT_USCALED)
{
diff --git a/src/gallium/drivers/swr/swr_shader.cpp b/src/gallium/drivers/swr/swr_shader.cpp
index 732e08dae7b..599dc43698a 100644
--- a/src/gallium/drivers/swr/swr_shader.cpp
+++ b/src/gallium/drivers/swr/swr_shader.cpp
@@ -1238,7 +1238,7 @@ BuilderSWR::CompileFS(struct swr_context *ctx, swr_jit_fs_key &key)
// peform a gather to grab stipple words for each lane
Value *vStipple = GATHERDD(VUNDEF_I(), stipplePtr, vYstipple,
- VIMMED1(0xffffffff), C((char)4));
+ VIMMED1(0xffffffff), 4);
// create a mask with one bit corresponding to the x stipple
// and AND it with the pattern, to see if we have a bit