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skia2/tests/sksl/shared/Ossfuzz29494.asm.frag

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Use unsigned values when constant-folding integer vectors We already had this trick for scalar integers, this extends it to integer vectors. As with prior work in this area, it would be better to detect this case and produce an error, but now we at least produce consistent and well-defined results (rather than undefined signed integer overflow). Bug: skia:10932 Bug: oss-fuzz:29494 Change-Id: I45526fe96b6ea42c0e88b9862f6961b316810321 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/363962 Commit-Queue: Brian Osman <brianosman@google.com> Reviewed-by: John Stiles <johnstiles@google.com>
2021-02-01 18:48:50 +00:00
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %main "main" %sk_FragColor %sk_Clockwise
OpExecutionMode %main OriginUpperLeft
OpName %sk_FragColor "sk_FragColor"
OpName %sk_Clockwise "sk_Clockwise"
OpName %main "main"
OpDecorate %sk_FragColor RelaxedPrecision
OpDecorate %sk_FragColor Location 0
OpDecorate %sk_FragColor Index 0
OpDecorate %sk_Clockwise RelaxedPrecision
OpDecorate %sk_Clockwise BuiltIn FrontFacing
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
%sk_FragColor = OpVariable %_ptr_Output_v4float Output
%bool = OpTypeBool
%_ptr_Input_bool = OpTypePointer Input %bool
%sk_Clockwise = OpVariable %_ptr_Input_bool Input
%void = OpTypeVoid
%11 = OpTypeFunction %void
%float_0 = OpConstant %float 0
Revert "Disable control-flow analysis in SkSL. (Performance experiment)" This reverts commit 50b1b2b90d609c235c70692ac9b6e6450a7c3fb5. Reason for revert: ending experiment Original change's description: > Disable control-flow analysis in SkSL. (Performance experiment) > > This CL will be used to test for potential performance regressions (or > improvements?) that we might incur by disabling this optimization pass. > > It will be reverted in ~1 day. > > Change-Id: I775cdb0c95df81fa25ebbd66e4ff01f64c660f68 > Bug: skia:11319 > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/378456 > Commit-Queue: John Stiles <johnstiles@google.com> > Reviewed-by: Brian Osman <brianosman@google.com> > Reviewed-by: Ethan Nicholas <ethannicholas@google.com> TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com Change-Id: Ie385a82db237ff5651348d82b9651f8ba09375b9 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: skia:11319 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/379581 Reviewed-by: John Stiles <johnstiles@google.com> Commit-Queue: John Stiles <johnstiles@google.com>
2021-03-04 15:19:48 +00:00
%14 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
Use unsigned values when constant-folding integer vectors We already had this trick for scalar integers, this extends it to integer vectors. As with prior work in this area, it would be better to detect this case and produce an error, but now we at least produce consistent and well-defined results (rather than undefined signed integer overflow). Bug: skia:10932 Bug: oss-fuzz:29494 Change-Id: I45526fe96b6ea42c0e88b9862f6961b316810321 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/363962 Commit-Queue: Brian Osman <brianosman@google.com> Reviewed-by: John Stiles <johnstiles@google.com>
2021-02-01 18:48:50 +00:00
%main = OpFunction %void None %11
%12 = OpLabel
Revert "Disable control-flow analysis in SkSL. (Performance experiment)" This reverts commit 50b1b2b90d609c235c70692ac9b6e6450a7c3fb5. Reason for revert: ending experiment Original change's description: > Disable control-flow analysis in SkSL. (Performance experiment) > > This CL will be used to test for potential performance regressions (or > improvements?) that we might incur by disabling this optimization pass. > > It will be reverted in ~1 day. > > Change-Id: I775cdb0c95df81fa25ebbd66e4ff01f64c660f68 > Bug: skia:11319 > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/378456 > Commit-Queue: John Stiles <johnstiles@google.com> > Reviewed-by: Brian Osman <brianosman@google.com> > Reviewed-by: Ethan Nicholas <ethannicholas@google.com> TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com Change-Id: Ie385a82db237ff5651348d82b9651f8ba09375b9 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: skia:11319 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/379581 Reviewed-by: John Stiles <johnstiles@google.com> Commit-Queue: John Stiles <johnstiles@google.com>
2021-03-04 15:19:48 +00:00
OpStore %sk_FragColor %14
Use unsigned values when constant-folding integer vectors We already had this trick for scalar integers, this extends it to integer vectors. As with prior work in this area, it would be better to detect this case and produce an error, but now we at least produce consistent and well-defined results (rather than undefined signed integer overflow). Bug: skia:10932 Bug: oss-fuzz:29494 Change-Id: I45526fe96b6ea42c0e88b9862f6961b316810321 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/363962 Commit-Queue: Brian Osman <brianosman@google.com> Reviewed-by: John Stiles <johnstiles@google.com>
2021-02-01 18:48:50 +00:00
OpReturn
OpFunctionEnd
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