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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 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
Performance experiment: disable control-flow analysis. This CL will be used to test for potential performance regressions (or improvements) that we might cause by disabling this optimization pass. It will be reverted in ~1 day. Change-Id: I26b7687c341eb6d81231406381c39869cfccf6d6 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/381259 Auto-Submit: John Stiles <johnstiles@google.com> Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> Reviewed-by: Brian Osman <brianosman@google.com>
2021-03-08 18:29:15 +00:00
%false = OpConstantFalse %bool
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
%float_0 = OpConstant %float 0
Performance experiment: disable control-flow analysis. This CL will be used to test for potential performance regressions (or improvements) that we might cause by disabling this optimization pass. It will be reverted in ~1 day. Change-Id: I26b7687c341eb6d81231406381c39869cfccf6d6 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/381259 Auto-Submit: John Stiles <johnstiles@google.com> Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> Reviewed-by: Brian Osman <brianosman@google.com>
2021-03-08 18:29:15 +00:00
%15 = 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
Performance experiment: disable control-flow analysis. This CL will be used to test for potential performance regressions (or improvements) that we might cause by disabling this optimization pass. It will be reverted in ~1 day. Change-Id: I26b7687c341eb6d81231406381c39869cfccf6d6 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/381259 Auto-Submit: John Stiles <johnstiles@google.com> Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> Reviewed-by: Brian Osman <brianosman@google.com>
2021-03-08 18:29:15 +00:00
OpStore %sk_FragColor %15
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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