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[flang][hlfir] Codegen for hlfir.get_length.
Lower hlfir.get_length into the char length inquiry of the bufferized entity. In some cases the codegen will fail with `hlfir.associate of hlfir.expr with more than one use` - this will be fixed separately (after D154521). Depends on D154560 Reviewed By: tblah, jeanPerier Differential Revision: https://reviews.llvm.org/D154561
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// Test hlfir.get_length code generation | ||
// RUN: fir-opt %s --bufferize-hlfir | FileCheck %s | ||
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func.func @_QPtest_char_get_length(%arg0: !fir.boxchar<1> {fir.bindc_name = "ch"}) -> index { | ||
%c3 = arith.constant 3 : index | ||
%0:2 = fir.unboxchar %arg0 : (!fir.boxchar<1>) -> (!fir.ref<!fir.char<1,?>>, index) | ||
%1:2 = hlfir.declare %0#0 typeparams %0#1 {uniq_name = "_QFtest_char_get_lengthEch"} : (!fir.ref<!fir.char<1,?>>, index) -> (!fir.boxchar<1>, !fir.ref<!fir.char<1,?>>) | ||
%2 = fir.alloca i32 {bindc_name = "x", uniq_name = "_QFtest_char_get_lengthEx"} | ||
%3:2 = hlfir.declare %2 {uniq_name = "_QFtest_char_get_lengthEx"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>) | ||
%4 = fir.address_of(@_QQcl.616263) : !fir.ref<!fir.char<1,3>> | ||
%5:2 = hlfir.declare %4 typeparams %c3 {fortran_attrs = #fir.var_attrs<parameter>, uniq_name = "_QQcl.616263"} : (!fir.ref<!fir.char<1,3>>, index) -> (!fir.ref<!fir.char<1,3>>, !fir.ref<!fir.char<1,3>>) | ||
%6 = arith.addi %0#1, %c3 : index | ||
%7 = hlfir.concat %5#0, %1#0 len %6 : (!fir.ref<!fir.char<1,3>>, !fir.boxchar<1>, index) -> !hlfir.expr<!fir.char<1,?>> | ||
%8:3 = hlfir.associate %7 typeparams %6 {uniq_name = ".tmp.assign"} : (!hlfir.expr<!fir.char<1,?>>, index) -> (!fir.boxchar<1>, !fir.ref<!fir.char<1,?>>, i1) | ||
%9 = hlfir.as_expr %8#0 : (!fir.boxchar<1>) -> !hlfir.expr<!fir.char<1,?>> | ||
%10 = hlfir.get_length %9 : (!hlfir.expr<!fir.char<1,?>>) -> index | ||
hlfir.destroy %9 : !hlfir.expr<!fir.char<1,?>> | ||
hlfir.end_associate %8#1, %8#2 : !fir.ref<!fir.char<1,?>>, i1 | ||
return %10 : index | ||
} | ||
fir.global linkonce @_QQcl.616263 constant : !fir.char<1,3> { | ||
%0 = fir.string_lit "abc"(3) : !fir.char<1,3> | ||
fir.has_value %0 : !fir.char<1,3> | ||
} | ||
// CHECK-LABEL: func.func @_QPtest_char_get_length( | ||
// CHECK-SAME: %[[VAL_0:.*]]: !fir.boxchar<1> {fir.bindc_name = "ch"}) -> index { | ||
// CHECK: %[[VAL_1:.*]] = arith.constant 3 : index | ||
// CHECK: %[[VAL_2:.*]]:2 = fir.unboxchar %[[VAL_0]] : (!fir.boxchar<1>) -> (!fir.ref<!fir.char<1,?>>, index) | ||
// CHECK: %[[VAL_9:.*]] = arith.addi %[[VAL_1]], %[[VAL_2]]#1 : index | ||
// CHECK: %[[VAL_33:.*]]:2 = hlfir.declare %[[VAL_31:.*]] typeparams %[[VAL_9]] {uniq_name = ".tmp"} : (!fir.ref<!fir.char<1,?>>, index) -> (!fir.boxchar<1>, !fir.ref<!fir.char<1,?>>) | ||
// CHECK: return %[[VAL_9]] : index | ||
// CHECK: } |