skia2/tests/sksl/shared/Ossfuzz36770.asm.frag
John Stiles d7437eec2e Fix for fuzzer-discovered error in SPIR-V with RTFlip.
SPIR-V code generation synthesizes some extra variables that don't
actually exist in the Program. Checking the ProgramUsage of these
variables would fail; ProgramUsage::get doesn't know about these
variables, so it asserts (and would consider them as dead even if it
didn't assert). We now track our SPIR-V bonus variables in a separate
set, and always report them as live.

Change-Id: If2f681470654025abf7ca4b3ec8126de2eb01297
Bug: oss-fuzz:36770
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/435625
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-08-02 17:13:50 +00:00

37 lines
993 B
JavaScript

### Compilation failed:
error: SPIR-V validation error: Member index 0 is missing a location assignment
%T = OpTypeStruct %int %v2float
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %main "main" %4 %sk_Clockwise
OpExecutionMode %main OriginUpperLeft
OpName %T "T"
OpMemberName %T 0 "x"
OpMemberName %T 1 "u_skRTFlip"
OpName %sk_Clockwise "sk_Clockwise"
OpName %main "main"
OpMemberDecorate %T 0 Offset 0
OpMemberDecorate %T 1 Offset 32
OpDecorate %T Block
OpDecorate %sk_Clockwise BuiltIn FrontFacing
%int = OpTypeInt 32 1
%float = OpTypeFloat 32
%v2float = OpTypeVector %float 2
%T = OpTypeStruct %int %v2float
%_ptr_Input_T = OpTypePointer Input %T
%4 = OpVariable %_ptr_Input_T Input
%bool = OpTypeBool
%_ptr_Input_bool = OpTypePointer Input %bool
%sk_Clockwise = OpVariable %_ptr_Input_bool Input
%void = OpTypeVoid
%14 = OpTypeFunction %void
%main = OpFunction %void None %14
%15 = OpLabel
OpReturn
OpFunctionEnd
1 error