e47b507562
This adds an `emitc.lvalue` type which models assignable lvlaues in the type system. Operations modifying memory are restricted to this type accordingly. See also the discussion on [discourse](https://discourse.llvm.org/t/rfc-separate-variables-from-ssa-values-in-emitc/75224/9). The most notable changes are as follows. - `emitc.variable` and `emitc.global` ops are restricted to return `emitc.array` or `emitc.lvalue` types - Taking the address of a value is restricted to operands with lvalue type - Conversion from lvalues into SSA values is done with the new `emitc.load` op - The var operand of the `emitc.assign` op is restricted to lvalue type - The result of the `emitc.subscript` and `emitc.get_global` ops is a lvalue type - The operands and results of the `emitc.member` and `emitc.member_of_ptr` ops are restricted to lvalue types --------- Co-authored-by: Matthias Gehre <matthias.gehre@amd.com>
165 lines
6.9 KiB
MLIR
165 lines
6.9 KiB
MLIR
// RUN: mlir-translate -mlir-to-cpp %s | FileCheck %s -check-prefix=CPP-DEFAULT
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// RUN: mlir-translate -mlir-to-cpp -declare-variables-at-top %s | FileCheck %s -check-prefix=CPP-DECLTOP
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func.func @test_for(%arg0 : index, %arg1 : index, %arg2 : index) {
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%lb = emitc.expression : index {
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%a = emitc.add %arg0, %arg1 : (index, index) -> index
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emitc.yield %a : index
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}
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%ub = emitc.expression : index {
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%a = emitc.mul %arg1, %arg2 : (index, index) -> index
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emitc.yield %a : index
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}
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%step = emitc.expression : index {
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%a = emitc.div %arg0, %arg2 : (index, index) -> index
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emitc.yield %a : index
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}
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emitc.for %i0 = %lb to %ub step %step {
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%0 = emitc.call_opaque "f"() : () -> i32
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}
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return
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}
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// CPP-DEFAULT: void test_for(size_t [[V1:[^ ]*]], size_t [[V2:[^ ]*]], size_t [[V3:[^ ]*]]) {
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// CPP-DEFAULT-NEXT: for (size_t [[ITER:[^ ]*]] = [[V1]] + [[V2]]; [[ITER]] < ([[V2]] * [[V3]]); [[ITER]] += [[V1]] / [[V3]]) {
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// CPP-DEFAULT-NEXT: int32_t [[V4:[^ ]*]] = f();
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// CPP-DEFAULT-NEXT: }
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// CPP-DEFAULT-NEXT: return;
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// CPP-DECLTOP: void test_for(size_t [[V1:[^ ]*]], size_t [[V2:[^ ]*]], size_t [[V3:[^ ]*]]) {
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// CPP-DECLTOP-NEXT: int32_t [[V4:[^ ]*]];
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// CPP-DECLTOP-NEXT: for (size_t [[ITER:[^ ]*]] = [[V1]] + [[V2]]; [[ITER]] < ([[V2]] * [[V3]]); [[ITER]] += [[V1]] / [[V3]]) {
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// CPP-DECLTOP-NEXT: [[V4]] = f();
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// CPP-DECLTOP-NEXT: }
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// CPP-DECLTOP-NEXT: return;
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func.func @test_for_yield() {
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%start = "emitc.constant"() <{value = 0 : index}> : () -> index
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%stop = "emitc.constant"() <{value = 10 : index}> : () -> index
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%step = "emitc.constant"() <{value = 1 : index}> : () -> index
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%s0 = "emitc.constant"() <{value = 0 : i32}> : () -> i32
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%p0 = "emitc.constant"() <{value = 1.0 : f32}> : () -> f32
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%0 = "emitc.variable"() <{value = #emitc.opaque<"">}> : () -> !emitc.lvalue<i32>
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%1 = "emitc.variable"() <{value = #emitc.opaque<"">}> : () -> !emitc.lvalue<f32>
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%2 = "emitc.variable"() <{value = #emitc.opaque<"">}> : () -> !emitc.lvalue<i32>
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%3 = "emitc.variable"() <{value = #emitc.opaque<"">}> : () -> !emitc.lvalue<f32>
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emitc.assign %s0 : i32 to %2 : !emitc.lvalue<i32>
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emitc.assign %p0 : f32 to %3 : !emitc.lvalue<f32>
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emitc.for %iter = %start to %stop step %step {
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%4 = emitc.load %2 : !emitc.lvalue<i32>
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%sn = emitc.call_opaque "add"(%4, %iter) : (i32, index) -> i32
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%5 = emitc.load %3 : !emitc.lvalue<f32>
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%pn = emitc.call_opaque "mul"(%5, %iter) : (f32, index) -> f32
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emitc.assign %sn : i32 to %2 : !emitc.lvalue<i32>
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emitc.assign %pn : f32 to %3 : !emitc.lvalue<f32>
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emitc.yield
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}
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%6 = emitc.load %2 : !emitc.lvalue<i32>
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emitc.assign %6 : i32 to %0 : !emitc.lvalue<i32>
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%7 = emitc.load %3 : !emitc.lvalue<f32>
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emitc.assign %7 : f32 to %1 : !emitc.lvalue<f32>
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return
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}
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// CPP-DEFAULT: void test_for_yield() {
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// CPP-DEFAULT-NEXT: size_t [[START:[^ ]*]] = 0;
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// CPP-DEFAULT-NEXT: size_t [[STOP:[^ ]*]] = 10;
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// CPP-DEFAULT-NEXT: size_t [[STEP:[^ ]*]] = 1;
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// CPP-DEFAULT-NEXT: int32_t [[S0:[^ ]*]] = 0;
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// CPP-DEFAULT-NEXT: float [[P0:[^ ]*]] = 1.000000000e+00f;
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// CPP-DEFAULT-NEXT: int32_t [[SE:[^ ]*]];
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// CPP-DEFAULT-NEXT: float [[PE:[^ ]*]];
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// CPP-DEFAULT-NEXT: int32_t [[SI:[^ ]*]];
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// CPP-DEFAULT-NEXT: float [[PI:[^ ]*]];
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// CPP-DEFAULT-NEXT: [[SI:[^ ]*]] = [[S0]];
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// CPP-DEFAULT-NEXT: [[PI:[^ ]*]] = [[P0]];
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// CPP-DEFAULT-NEXT: for (size_t [[ITER:[^ ]*]] = [[START]]; [[ITER]] < [[STOP]]; [[ITER]] += [[STEP]]) {
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// CPP-DEFAULT-NEXT: int32_t [[SI_LOAD:[^ ]*]] = [[SI]];
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// CPP-DEFAULT-NEXT: int32_t [[SN:[^ ]*]] = add([[SI_LOAD]], [[ITER]]);
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// CPP-DEFAULT-NEXT: float [[PI_LOAD:[^ ]*]] = [[PI]];
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// CPP-DEFAULT-NEXT: float [[PN:[^ ]*]] = mul([[PI_LOAD]], [[ITER]]);
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// CPP-DEFAULT-NEXT: [[SI]] = [[SN]];
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// CPP-DEFAULT-NEXT: [[PI]] = [[PN]];
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// CPP-DEFAULT-NEXT: }
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// CPP-DEFAULT-NEXT: int32_t [[SI_LOAD2:[^ ]*]] = [[SI]];
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// CPP-DEFAULT-NEXT: [[SE]] = [[SI_LOAD2]];
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// CPP-DEFAULT-NEXT: float [[PI_LOAD2:[^ ]*]] = [[PI]];
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// CPP-DEFAULT-NEXT: [[PE]] = [[PI_LOAD2]];
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// CPP-DEFAULT-NEXT: return;
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// CPP-DECLTOP: void test_for_yield() {
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// CPP-DECLTOP-NEXT: size_t [[START:[^ ]*]];
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// CPP-DECLTOP-NEXT: size_t [[STOP:[^ ]*]];
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// CPP-DECLTOP-NEXT: size_t [[STEP:[^ ]*]];
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// CPP-DECLTOP-NEXT: int32_t [[S0:[^ ]*]];
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// CPP-DECLTOP-NEXT: float [[P0:[^ ]*]];
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// CPP-DECLTOP-NEXT: int32_t [[SE:[^ ]*]];
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// CPP-DECLTOP-NEXT: float [[PE:[^ ]*]];
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// CPP-DECLTOP-NEXT: int32_t [[SI:[^ ]*]];
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// CPP-DECLTOP-NEXT: float [[PI:[^ ]*]];
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// CPP-DECLTOP-NEXT: int32_t [[SI_LOAD:[^ ]*]];
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// CPP-DECLTOP-NEXT: int32_t [[SN:[^ ]*]];
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// CPP-DECLTOP-NEXT: float [[PI_LOAD:[^ ]*]];
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// CPP-DECLTOP-NEXT: float [[PN:[^ ]*]];
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// CPP-DECLTOP-NEXT: int32_t [[SI_LOAD2:[^ ]*]];
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// CPP-DECLTOP-NEXT: float [[PI_LOAD2:[^ ]*]];
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// CPP-DECLTOP-NEXT: [[START]] = 0;
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// CPP-DECLTOP-NEXT: [[STOP]] = 10;
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// CPP-DECLTOP-NEXT: [[STEP]] = 1;
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// CPP-DECLTOP-NEXT: [[S0]] = 0;
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// CPP-DECLTOP-NEXT: [[P0]] = 1.000000000e+00f;
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// CPP-DECLTOP-NEXT: ;
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// CPP-DECLTOP-NEXT: ;
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// CPP-DECLTOP-NEXT: ;
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// CPP-DECLTOP-NEXT: ;
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// CPP-DECLTOP-NEXT: [[SI]] = [[S0]];
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// CPP-DECLTOP-NEXT: [[PI]] = [[P0]];
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// CPP-DECLTOP-NEXT: for (size_t [[ITER:[^ ]*]] = [[START]]; [[ITER]] < [[STOP]]; [[ITER]] += [[STEP]]) {
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// CPP-DECLTOP-NEXT: [[SI_LOAD]] = [[SI]];
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// CPP-DECLTOP-NEXT: [[SN]] = add([[SI_LOAD]], [[ITER]]);
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// CPP-DECLTOP-NEXT: [[PI_LOAD]] = [[PI]];
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// CPP-DECLTOP-NEXT: [[PN]] = mul([[PI_LOAD]], [[ITER]]);
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// CPP-DECLTOP-NEXT: [[SI]] = [[SN]];
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// CPP-DECLTOP-NEXT: [[PI]] = [[PN]];
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// CPP-DECLTOP-NEXT: }
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// CPP-DECLTOP-NEXT: [[SI_LOAD2]] = [[SI]];
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// CPP-DECLTOP-NEXT: [[SE]] = [[SI_LOAD2]];
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// CPP-DECLTOP-NEXT: [[PI_LOAD2]] = [[PI]];
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// CPP-DECLTOP-NEXT: [[PE]] = [[PI_LOAD2]];
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// CPP-DECLTOP-NEXT: return;
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func.func @test_for_yield_2() {
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%start = emitc.literal "0" : index
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%stop = emitc.literal "10" : index
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%step = emitc.literal "1" : index
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%s0 = emitc.literal "0" : i32
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%p0 = emitc.literal "M_PI" : f32
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%0 = "emitc.variable"() <{value = #emitc.opaque<"">}> : () -> !emitc.lvalue<i32>
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%1 = "emitc.variable"() <{value = #emitc.opaque<"">}> : () -> !emitc.lvalue<f32>
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%2 = "emitc.variable"() <{value = #emitc.opaque<"">}> : () -> !emitc.lvalue<i32>
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%3 = "emitc.variable"() <{value = #emitc.opaque<"">}> : () -> !emitc.lvalue<f32>
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emitc.assign %s0 : i32 to %2 : !emitc.lvalue<i32>
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emitc.assign %p0 : f32 to %3 : !emitc.lvalue<f32>
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emitc.for %iter = %start to %stop step %step {
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%4 = emitc.load %2 : !emitc.lvalue<i32>
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%sn = emitc.call_opaque "add"(%4, %iter) : (i32, index) -> i32
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%5 = emitc.load %3 : !emitc.lvalue<f32>
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%pn = emitc.call_opaque "mul"(%5, %iter) : (f32, index) -> f32
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emitc.assign %sn : i32 to %2 : !emitc.lvalue<i32>
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emitc.assign %pn : f32 to %3 : !emitc.lvalue<f32>
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emitc.yield
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}
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%6 = emitc.load %2 : !emitc.lvalue<i32>
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emitc.assign %6 : i32 to %0 : !emitc.lvalue<i32>
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%7 = emitc.load %3 : !emitc.lvalue<f32>
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emitc.assign %7 : f32 to %1 : !emitc.lvalue<f32>
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return
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}
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// CPP-DEFAULT: void test_for_yield_2() {
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// CPP-DEFAULT: {{.*}}= M_PI
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// CPP-DEFAULT: for (size_t [[IN:.*]] = 0; [[IN]] < 10; [[IN]] += 1) {
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