mirror of
https://github.com/revng/revng
synced 2026-06-21 14:07:57 +00:00
Alessandro Di Federico
67 lines
2.0 KiB
MLIR
67 lines
2.0 KiB
MLIR
//
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// This file is distributed under the MIT License. See LICENSE.md for details.
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//
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// RUN: %root/bin/revng clift-opt %s --optimize-expressions | FileCheck %s
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!void = !clift.void
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!generic64_t = !clift.int<generic 8>
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!int32_t = !clift.int<signed 4>
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!int32_t$ptr = !clift.ptr<8 to !int32_t>
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!f = !clift.func<"/model-type/1001" : !void(!int32_t$ptr, !generic64_t)>
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module attributes {clift.module} {
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// x[0] -> *x
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clift.func @f<!f>(%arg0 : !int32_t$ptr, %arg1 : !generic64_t) -> !void {
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// CHECK: clift.expr {
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clift.expr {
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%0 = clift.imm 0 : !generic64_t
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// CHECK-NOT: clift.subscript
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%1 = clift.subscript %arg0, %0 : (!int32_t$ptr, !generic64_t)
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// CHECK: clift.indirection %arg0
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clift.yield %1 : !int32_t
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}
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// CHECK: }
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}
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// &(x[0]) -> x (via composition with the `&*x -> x` rewriting)
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clift.func @g<!f>(%arg0 : !int32_t$ptr, %arg1 : !generic64_t) -> !void {
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// CHECK: clift.expr {
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clift.expr {
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%0 = clift.imm 0 : !generic64_t
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// CHECK-NOT: clift.subscript
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%1 = clift.subscript %arg0, %0 : (!int32_t$ptr, !generic64_t)
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// CHECK-NOT: clift.addressof
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%2 = clift.addressof %1 : !int32_t$ptr
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// CHECK: clift.yield %arg0
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clift.yield %2 : !int32_t$ptr
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}
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// CHECK: }
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}
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// x[i] is NOT rewritten (index is not a constant zero)
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clift.func @h<!f>(%arg0 : !int32_t$ptr, %arg1 : !generic64_t) -> !void {
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// CHECK: clift.expr {
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clift.expr {
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// CHECK: clift.subscript
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%0 = clift.subscript %arg0, %arg1 : (!int32_t$ptr, !generic64_t)
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clift.yield %0 : !int32_t
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}
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// CHECK: }
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}
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// x[1] is NOT rewritten (constant index is not zero)
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clift.func @i<!f>(%arg0 : !int32_t$ptr, %arg1 : !generic64_t) -> !void {
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// CHECK: clift.expr {
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clift.expr {
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%0 = clift.imm 1 : !generic64_t
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// CHECK: clift.subscript
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%1 = clift.subscript %arg0, %0 : (!int32_t$ptr, !generic64_t)
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clift.yield %1 : !int32_t
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}
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// CHECK: }
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}
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}
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