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
78 lines
3.1 KiB
LLVM
78 lines
3.1 KiB
LLVM
; RUN: llc < %s --mtriple=wasm32-unknown-unknown -asm-verbose=false -mattr=+reference-types | 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 %externref @get_externref_from_table(i32 %i) {
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; CHECK-LABEL: get_externref_from_table:
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; CHECK-NEXT: .functype get_externref_from_table (i32) -> (externref)
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: table.get 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 %i
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%ref = load %externref, %externref addrspace(1)* %p
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ret %externref %ref
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}
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define %externref @get_externref_from_table_const() {
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; CHECK-LABEL: get_externref_from_table_const:
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; CHECK-NEXT: .functype get_externref_from_table_const () -> (externref)
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; CHECK-NEXT: i32.const 0
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; CHECK-NEXT: table.get 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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%ref = load %externref, %externref addrspace(1)* %p
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ret %externref %ref
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}
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define %externref @get_externref_from_table_with_offset(i32 %i) {
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; CHECK-LABEL: get_externref_from_table_with_offset:
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; CHECK-NEXT: .functype get_externref_from_table_with_offset (i32) -> (externref)
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: i32.const 2
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; CHECK-NEXT: i32.add
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; CHECK-NEXT: table.get 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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%ref = load %externref, %externref addrspace(1)* %p
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ret %externref %ref
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}
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define %externref @get_externref_from_table_with_var_offset(i32 %i, i32 %j) {
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; CHECK-LABEL: get_externref_from_table_with_var_offset:
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; CHECK-NEXT: .functype get_externref_from_table_with_var_offset (i32, i32) -> (externref)
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i32.add
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; CHECK-NEXT: table.get 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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%ref = load %externref, %externref addrspace(1)* %p
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ret %externref %ref
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}
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declare i32 @get_offset()
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define %externref @get_externref_from_table_with_var_offset2(i32 %i) {
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; CHECK-LABEL: get_externref_from_table_with_var_offset2:
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; CHECK-NEXT: .functype get_externref_from_table_with_var_offset2 (i32) -> (externref)
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: call get_offset
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; CHECK-NEXT: i32.add
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; CHECK-NEXT: table.get externref_table
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; CHECK-NEXT: end_function
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%j = call i32 @get_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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%ref = load %externref, %externref addrspace(1)* %p
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ret %externref %ref
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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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