c67c9cfe3f
Reland of 00bf4755.
This patches fixes the visibility and linkage information of symbols
referring to IR globals.
Emission of external declarations is now done in the first execution
of emitConstantPool rather than in emitLinkage (and a few other
places). This is the point where we have already gathered information
about used symbols (by running the MC Lower PrePass) and not yet
started emitting any functions so that any declarations that need to
be emitted are done so at the top of the file before any functions.
This changes the order of a few directives in the final asm file which
required an update to a few tests.
Reviewed By: sbc100
Differential Revision: https://reviews.llvm.org/D118995
99 lines
3.8 KiB
LLVM
99 lines
3.8 KiB
LLVM
; RUN: llc --mtriple=wasm32-unknown-unknown -asm-verbose=false -mattr=+reference-types < %s | FileCheck %s
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%extern = type opaque
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%externref = type %extern addrspace(10)* ;; addrspace 10 is nonintegral
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@externref_table = local_unnamed_addr addrspace(1) global [0 x %externref] undef
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define void @set_externref_table(%externref %g, i32 %i) {
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; CHECK-LABEL: set_externref_table:
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; CHECK-NEXT: .functype set_externref_table (externref, i32) -> ()
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: table.set externref_table
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; CHECK-NEXT: end_function
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;; this generates a table.set of @externref_table
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%p = getelementptr [0 x %externref], [0 x %externref] addrspace (1)* @externref_table, i32 0, i32 %i
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store %externref %g, %externref addrspace(1)* %p
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ret void
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}
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define void @set_externref_table_const(%externref %g) {
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; CHECK-LABEL: set_externref_table_const:
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; CHECK-NEXT: .functype set_externref_table_const (externref) -> ()
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; CHECK-NEXT: i32.const 0
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: table.set externref_table
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; CHECK-NEXT: end_function
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%p = getelementptr [0 x %externref], [0 x %externref] addrspace (1)* @externref_table, i32 0, i32 0
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store %externref %g, %externref addrspace(1)* %p
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ret void
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}
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define void @set_externref_table_with_offset(%externref %g, i32 %i) {
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; CHECK-LABEL: set_externref_table_with_offset:
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; CHECK-NEXT: .functype set_externref_table_with_offset (externref, i32) -> ()
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i32.const 2
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; CHECK-NEXT: i32.add
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: table.set externref_table
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; CHECK-NEXT: end_function
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%off = add nsw i32 %i, 2
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%p = getelementptr [0 x %externref], [0 x %externref] addrspace (1)* @externref_table, i32 0, i32 %off
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store %externref %g, %externref addrspace(1)* %p
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ret void
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}
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define void @set_externref_table_with_var_offset(%externref %g, i32 %i, i32 %j) {
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; CHECK-LABEL: set_externref_table_with_var_offset:
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; CHECK-NEXT: .functype set_externref_table_with_var_offset (externref, i32, i32) -> ()
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: local.get 2
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; CHECK-NEXT: i32.add
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: table.set externref_table
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; CHECK-NEXT: end_function
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%off = add nsw i32 %i, %j
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%p = getelementptr [0 x %externref], [0 x %externref] addrspace (1)* @externref_table, i32 0, i32 %off
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store %externref %g, %externref addrspace(1)* %p
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ret void
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}
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declare i32 @set_offset()
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define void @set_externref_table_with_var_offset2(%externref %g, i32 %i) {
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; CHECK-LABEL: set_externref_table_with_var_offset2:
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; CHECK-NEXT: .functype set_externref_table_with_var_offset2 (externref, i32) -> ()
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: call set_offset
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; CHECK-NEXT: i32.add
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: table.set externref_table
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; CHECK-NEXT: end_function
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%j = call i32 @set_offset()
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%off = add nsw i32 %i, %j
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%p = getelementptr [0 x %externref], [0 x %externref] addrspace (1)* @externref_table, i32 0, i32 %off
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store %externref %g, %externref addrspace(1)* %p
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ret void
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}
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declare i32 @get_table_slot() local_unnamed_addr
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define void @set_externref_table_with_id_from_call(%externref %g) {
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; CHECK-LABEL: set_externref_table_with_id_from_call:
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; CHECK-NEXT: .functype set_externref_table_with_id_from_call (externref) -> ()
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; CHECK-NEXT: call get_table_slot
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: table.set externref_table
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; CHECK-NEXT: end_function
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%id = call i32 @get_table_slot()
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%p = getelementptr [0 x %externref], [0 x %externref] addrspace (1)* @externref_table, i32 0, i32 %id
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store %externref %g, %externref addrspace(1)* %p
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ret void
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}
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; CHECK: .tabletype externref_table, externref
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; CHECK-LABEL: externref_table:
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