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TheRock/compiler/amd-llvm/llvm/test/CodeGen/SPIRV/vk-pushconstant-gep-constant-expr.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

28 lines
1.3 KiB
LLVM

; RUN: llc -O0 -verify-machineinstrs -mtriple=spirv-vulkan-unknown %s -o - | FileCheck %s
%struct.PushConstants = type { <4 x float>, <4 x float>, i32 }
@push_constants = external hidden addrspace(13) externally_initialized global %struct.PushConstants, align 1
@result = external addrspace(1) global i32, align 4
; CHECK-DAG: %[[#INT32:]] = OpTypeInt 32 0
; CHECK-DAG: %[[#S_T:]] = OpTypeStruct {{.*}} {{.*}} %[[#INT32]]
; CHECK-DAG: %[[#PTR_PCS_S:]] = OpTypePointer PushConstant %[[#S_T]]
; CHECK-DAG: %[[#PCS:]] = OpVariable %[[#PTR_PCS_S]] PushConstant
; CHECK-DAG: %[[#PTR_I32:]] = OpTypePointer PushConstant %[[#INT32]]
; CHECK-DAG: %[[#INT_2:]] = OpConstant %[[#INT32]] 2
define void @main() #0 {
entry:
; This is the case where GEP is embedded in the load as a constant expression.
; We want to ensure that it gets lowered correctly to instructions.
; CHECK: %[[#GEP:]] = OpInBoundsAccessChain %[[#PTR_I32]] %[[#PCS]] %[[#INT_2]]
; CHECK: %[[#VAL:]] = OpLoad %[[#INT32]] %[[#GEP]]
%0 = load i32, ptr addrspace(13) getelementptr inbounds nuw (%struct.PushConstants, ptr addrspace(13) @push_constants, i32 0, i32 2), align 1
%1 = add i32 %0, 1
store i32 %1, ptr addrspace(1) @result, align 4
ret void
}
attributes #0 = { convergent noinline norecurse optnone "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" }