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[flang] Make NULL() initializers explicit for allocatables in DATA co… (
#69753) …nversion As requested by people working on lowering: when semantics converts the contents of DATA statements into explicit object initializers, ensure that structure constructors for derived types contain explicit NULL() values for their allocatable components.
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Original file line number | Diff line number | Diff line change |
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! RUN: %flang_fc1 -fdebug-dump-symbols %s 2>&1 | FileCheck %s | ||
! Verify that allocatable components have explicit NULL() initializers | ||
! when converted from DATA statements | ||
!CHECK: x1 (InDataStmt) size=32 offset=0: ObjectEntity type: TYPE(t) init:t(a=NULL(),n=1_4) | ||
!CHECK: x2 (InDataStmt) size=64 offset=32: ObjectEntity type: TYPE(t) shape: 1_8:2_8 init:[t::t(a=NULL(),n=2_4),t(a=NULL(),n=3_4)] | ||
!CHECK: x3 (InDataStmt) size=64 offset=96: ObjectEntity type: TYPE(t2) init:t2(b=[t::t(a=NULL(),n=4_4),t(a=NULL(),n=5_4)]) | ||
program main | ||
type t | ||
real, allocatable :: a | ||
integer n | ||
end type | ||
type t2 | ||
type(t) b(2) | ||
end type | ||
type(t) x1, x2(2) | ||
type(t2) x3 | ||
data x1%n/1/, x2(:)%n/2, 3/, x3%b(:)%n/4, 5/ | ||
end |