derek.holloway
7502bf64a4
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41 lines
1.7 KiB
LLVM
41 lines
1.7 KiB
LLVM
; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s
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; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -filetype=obj | spirv-val %}
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; Test that addrspacecast(null) is simplified to null of the target address
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; space type in all contexts: composite constants, instruction operands, and
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; global initializers.
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%struct = type { i32, ptr addrspace(4) }
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@gv = internal addrspace(1) constant %struct { i32 42, ptr addrspace(4) addrspacecast (ptr null to ptr addrspace(4)) }, align 8
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; CHECK-DAG: %[[#INT:]] = OpTypeInt 32 0
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; CHECK-DAG: %[[#CHAR:]] = OpTypeInt 8 0
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; CHECK-DAG: %[[#GENPTR:]] = OpTypePointer Generic %[[#CHAR]]
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; CHECK-DAG: %[[#CWGPTR:]] = OpTypePointer CrossWorkgroup %[[#CHAR]]
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; CHECK-DAG: %[[#STRUCT:]] = OpTypeStruct %[[#INT]] %[[#GENPTR]]
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; CHECK-DAG: %[[#CONST:]] = OpConstant %[[#INT]] 42
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; CHECK-DAG: %[[#NULL:]] = OpConstantNull %[[#GENPTR]]
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; CHECK-DAG: %[[#CWGNULL:]] = OpConstantNull %[[#CWGPTR]]
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; CHECK-DAG: %[[#BOOL:]] = OpTypeBool
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; Composite constant: addrspacecast(null) in struct member should become
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; OpConstantNull of the pointer type.
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; CHECK-DAG: OpConstantComposite %[[#STRUCT]] %[[#CONST]] %[[#NULL]]
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define spir_kernel void @test(ptr addrspace(1) %out) {
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entry:
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ret void
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}
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; Instruction operand: addrspacecast(null) in icmp should become
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; OpConstantNull of the pointer type, not a cast from integer-typed null.
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; CHECK: %[[#]] = OpPtrEqual %[[#BOOL]] %[[#CWGNULL]] %[[#]]
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define spir_kernel void @test_icmp(ptr addrspace(1) %arg, ptr addrspace(1) %out) {
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entry:
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%cmp = icmp eq ptr addrspace(1) addrspacecast (ptr null to ptr addrspace(1)), %arg
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%zext = zext i1 %cmp to i32
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store i32 %zext, ptr addrspace(1) %out
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ret void
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}
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