61ab476460
The OpenCL C specification states that for out-of-range dimension indices, `get_num_groups` must return 1 instead of 0.
56 lines
2.0 KiB
LLVM
56 lines
2.0 KiB
LLVM
; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s
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;; The set of valid inputs for get_num_groups depends on the runtime NDRange,
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;; but inputs outside of [0, 2] always return 1.
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;; Here we assume Itanium mangling for function name.
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declare i64 @_Z14get_num_groupsj(i32)
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define i64 @foo(i32 %dim) {
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%x = call i64 @_Z14get_num_groupsj(i32 0)
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%y = call i64 @_Z14get_num_groupsj(i32 5)
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%acc = add i64 %x, %y
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%unknown = call i64 @_Z14get_num_groupsj(i32 %dim)
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%ret = add i64 %acc, %unknown
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ret i64 %ret
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}
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;; Capabilities:
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; CHECK-DAG: OpCapability Kernel
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; CHECK-DAG: OpCapability Int64
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; CHECK-NOT: DAG-FENCE
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;; Decorations:
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; CHECK-DAG: OpDecorate %[[#GET_NUM_GROUPS:]] BuiltIn NumWorkgroups
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; CHECK-DAG: OpDecorate %[[#GET_NUM_GROUPS]] Constant
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; CHECK-NOT: DAG-FENCE
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;; Types, Constants and Variables:
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; CHECK-DAG: %[[#BOOL:]] = OpTypeBool
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; CHECK-DAG: %[[#I32:]] = OpTypeInt 32 0
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; CHECK-DAG: %[[#I64:]] = OpTypeInt 64 0
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; CHECK-DAG: %[[#VEC:]] = OpTypeVector %[[#I64]] 3
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; CHECK-DAG: %[[#PTR:]] = OpTypePointer Input %[[#VEC]]
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; CHECK-DAG: %[[#FN:]] = OpTypeFunction %[[#I64]] %[[#I32]]
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; CHECK-DAG: %[[#GET_NUM_GROUPS]] = OpVariable %[[#PTR]] Input
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; CHECK-DAG: %[[#ONE:]] = OpConstant %[[#I64]] 1
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; CHECK-DAG: %[[#THREE:]] = OpConstant %[[#I32]] 3
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;; Functions:
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; CHECK: OpFunction %[[#I64]] None %[[#FN]]
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; CHECK: %[[#DIM:]] = OpFunctionParameter %[[#I32]]
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;; get_num_groups(0): OpLoad + OpCompositeExtract.
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; CHECK: %[[#TMP1:]] = OpLoad %[[#VEC]] %[[#GET_NUM_GROUPS]]
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; CHECK: %[[#X:]] = OpCompositeExtract %[[#I64]] %[[#TMP1]] 0
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;; get_num_groups(5): OpConstant of one.
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; CHECK: OpIAdd %[[#I64]] %[[#X]] %[[#ONE]]
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;; get_num_groups(dim): Implementation using OpSelect.
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; CHECK-DAG: %[[#TMP2:]] = OpLoad %[[#VEC]] %[[#GET_NUM_GROUPS]]
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; CHECK-DAG: %[[#TMP3:]] = OpVectorExtractDynamic %[[#I64]] %[[#TMP2]] %[[#DIM]]
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; CHECK-DAG: %[[#COND:]] = OpULessThan %[[#BOOL]] %[[#DIM]] %[[#THREE]]
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; CHECK: %[[#UNKNOWN:]] = OpSelect %[[#I64]] %[[#COND]] %[[#TMP3]] %[[#ONE]]
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