1; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s 2 3;; The set of valid inputs for get_global_id depends on the runtime NDRange, 4;; but inputs outside of [0, 2] always return 0. 5;; Here we assume Itanium mangling for function name. 6declare i64 @_Z13get_global_idj(i32) 7 8define i64 @foo(i32 %dim) { 9 %x = call i64 @_Z13get_global_idj(i32 0) 10 %zero = call i64 @_Z13get_global_idj(i32 5) 11 %unknown = call i64 @_Z13get_global_idj(i32 %dim) 12 %acc = add i64 %x, %zero 13 %ret = add i64 %acc, %unknown 14 ret i64 %ret 15} 16 17;; Capabilities: 18; CHECK-DAG: OpCapability Kernel 19; CHECK-DAG: OpCapability Int64 20 21; CHECK-NOT: DAG-FENCE 22 23;; Decorations: 24; CHECK-DAG: OpDecorate %[[#GET_GLOBAL_ID:]] BuiltIn GlobalInvocationId 25; CHECK-DAG: OpDecorate %[[#GET_GLOBAL_ID]] Constant 26 27; CHECK-NOT: DAG-FENCE 28 29;; Types, Constants and Variables: 30; CHECK-DAG: %[[#BOOL:]] = OpTypeBool 31; CHECK-DAG: %[[#I32:]] = OpTypeInt 32 0 32; CHECK-DAG: %[[#I64:]] = OpTypeInt 64 0 33; CHECK-DAG: %[[#VEC:]] = OpTypeVector %[[#I64]] 3 34; CHECK-DAG: %[[#PTR:]] = OpTypePointer Input %[[#VEC]] 35; CHECK-DAG: %[[#FN:]] = OpTypeFunction %[[#I64]] %[[#I32]] 36; CHECK-DAG: %[[#GET_GLOBAL_ID]] = OpVariable %[[#PTR]] Input 37; CHECK-DAG: %[[#ZERO:]] = OpConstantNull %[[#I64]] 38; CHECK-DAG: %[[#THREE:]] = OpConstant %[[#I32]] 3 39 40;; Functions: 41; CHECK: OpFunction %[[#I64]] None %[[#FN]] 42; CHECK: %[[#DIM:]] = OpFunctionParameter %[[#I32]] 43 44;; get_global_id(0): OpLoad + OpCompositeExtract. 45; CHECK: %[[#TMP1:]] = OpLoad %[[#VEC]] %[[#GET_GLOBAL_ID]] 46; CHECK: %[[#X:]] = OpCompositeExtract %[[#I64]] %[[#TMP1]] 0 47 48;; get_global_id(5): OpConstant (above) of zero. 49;; get_global_id(dim): Here we assume a specific implementation using select. 50; CHECK-DAG: %[[#TMP2:]] = OpLoad %[[#VEC]] %[[#GET_GLOBAL_ID]] 51; CHECK-DAG: %[[#TMP3:]] = OpVectorExtractDynamic %[[#I64]] %[[#TMP2]] %[[#DIM]] 52; CHECK-DAG: %[[#COND:]] = OpULessThan %[[#BOOL]] %[[#DIM]] %[[#THREE]] 53; CHECK: %[[#UNKNOWN:]] = OpSelect %[[#I64]] %[[#COND]] %[[#TMP3]] %[[#ZERO]] 54