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TheRock/compiler/amd-llvm/flang/test/Fir/boxaddr-folding.fir
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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// RUN: fir-opt --canonicalize %s -split-input-file | FileCheck %s
// CHECK-LABEL: func @check_no_folding
func.func @check_no_folding(%arg0 : !fir.ref<!fir.array<?xi32>>) {
%0 = fir.alloca i32 {adapt.valuebyref}
%c1_i32 = arith.constant 1 : i32
%1 = fir.load %0 : !fir.ref<i32>
%2 = arith.addi %1, %c1_i32 : i32
%3 = fir.convert %2 : (i32) -> index
%c1 = arith.constant 1 : index
%5 = arith.subi %3, %c1 : index
%6 = fir.shape %3 : (index) -> !fir.shape<1>
%7 = fir.slice %3, %5, %3 : (index, index, index) -> !fir.slice<1>
%8 = fir.embox %arg0(%6) [%7] : (!fir.ref<!fir.array<?xi32>>, !fir.shape<1>, !fir.slice<1>) -> !fir.box<!fir.array<?xi32>>
%9 = fir.box_addr %8 : (!fir.box<!fir.array<?xi32>>) -> !fir.ref<!fir.array<?xi32>>
// CHECK: %[[BOX_ADDR:.*]] = fir.box_addr
// CHECK: fir.call @check(%[[BOX_ADDR]])
fir.call @check(%9) : (!fir.ref<!fir.array<?xi32>>) -> ()
return
}
func.func @check(%arg0: !fir.ref<!fir.array<?xi32>>) {
return
}
// -----
// CHECK-LABEL: func @check_folding
func.func @check_folding(%arg0 : !fir.ref<!fir.array<?xi32>>) {
%0 = fir.alloca i32 {adapt.valuebyref}
%c1_i32 = arith.constant 1 : i32
%1 = fir.load %0 : !fir.ref<i32>
%2 = arith.addi %1, %c1_i32 : i32
%3 = fir.convert %2 : (i32) -> index
%c1 = arith.constant 1 : index
%6 = fir.shape %3 : (index) -> !fir.shape<1>
%7 = fir.embox %arg0(%6) : (!fir.ref<!fir.array<?xi32>>, !fir.shape<1>) -> !fir.box<!fir.array<?xi32>>
%8 = fir.box_addr %7 : (!fir.box<!fir.array<?xi32>>) -> !fir.ref<!fir.array<?xi32>>
// CHECK-NOT: fir.box_addr
fir.call @check(%8) : (!fir.ref<!fir.array<?xi32>>) -> ()
return
}
func.func @check(%arg0: !fir.ref<!fir.array<?xi32>>) {
return
}