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DXC generates corrupted DXIL IR from a code that uses RayQuery as a struct member #6998

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jaladreips opened this issue Nov 4, 2024 · 0 comments
Open

DXC generates corrupted DXIL IR from a code that uses RayQuery as a struct member #6998

jaladreips opened this issue Nov 4, 2024 · 0 comments
Labels
bug Bug, regression, crash diagnostic Issues for diagnostics incorrect-code Issues relating to handling of incorrect code validation Related to validation or signing
Milestone
Backlog

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@jaladreips
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Description
DXC generates corrupted DXIL IR from a code that uses RayQuery as a struct member

Steps to Reproduce
https://godbolt.org/z/9a4WeTWW3

Actual Behavior
The allocateRayQuery instruction is missing.
rayquery allocation argument in other rayquery intrinsics is replaced with an undef. Like this:

  call void @dx.op.rayQuery_TraceRayInline(i32 179, i32 **undef**, %dx.types.Handle %6, i32 0, i32 -1, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+03), !dbg !48
  %7 = call i1 @dx.op.rayQuery_Proceed.i1(i32 180, i32 **undef**), !dbg !74

Environment
See godbolt link
@jaladreips jaladreips added bug Bug, regression, crash needs-triage Awaiting triage labels Nov 4, 2024
@damyanp damyanp added diagnostic Issues for diagnostics incorrect-code Issues relating to handling of incorrect code validation Related to validation or signing and removed needs-triage Awaiting triage labels Nov 5, 2024
@damyanp damyanp moved this to Triaged in HLSL Triage Nov 5, 2024
@damyanp damyanp added this to the Backlog milestone Nov 5, 2024
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Labels
bug Bug, regression, crash diagnostic Issues for diagnostics incorrect-code Issues relating to handling of incorrect code validation Related to validation or signing
Projects
HLSL Triage
Status: Triaged
Milestone
Backlog
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@damyanp @jaladreips