caio/clang-p2996
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
12ccdd67aaf56bd05ab3375d81c58dfd5a2db02c
clang-p2996/lld/test/wasm/data-segments.ll
Sam Clegg 457f38a7b0 [lld][WebAssembly] Revert moving of data relocations to start function 
Back in https://reviews.llvm.org/D117412 we moved the application of
data reloctions to the wasm start function.

However, because the dynamic linker doesn't know the final addresses
at module instantiation time, this proved to be too early and the
relocations could be applied with the wrong values.

Fixes: https://github.com/emscripten-core/emscripten/issues/17150

Differential Revision: https://reviews.llvm.org/D127333
2022-06-09 17:49:35 -07:00

253 lines
12 KiB
LLVM
Raw Blame History

; RUN: llc --mtriple=wasm32-unknown-unknown -filetype=obj %s -o %t.atomics.o -mattr=+atomics
; RUN: llc --mtriple=wasm32-unknown-unknown -filetype=obj %s -o %t.bulk-mem.o -mattr=+bulk-memory
; RUN: llc --mtriple=wasm64-unknown-unknown -filetype=obj %s -o %t.bulk-mem64.o -mattr=+bulk-memory
; RUN: llc --mtriple=wasm32-unknown-unknown -filetype=obj %s -o %t.atomics.bulk-mem.o -mattr=+atomics,+bulk-memory
; RUN: llc --mtriple=wasm64-unknown-unknown -filetype=obj %s -o %t.atomics.bulk-mem64.o -mattr=+atomics,+bulk-memory
; RUN: llc --mtriple=wasm32-unknown-unknown -filetype=obj %s -o %t.atomics.bulk-mem.pic.o -relocation-model=pic -mattr=+atomics,+bulk-memory,+mutable-globals
; RUN: llc --mtriple=wasm64-unknown-unknown -filetype=obj %s -o %t.atomics.bulk-mem.pic-mem64.o -relocation-model=pic -mattr=+atomics,+bulk-memory,+mutable-globals
; atomics, shared memory => error
; RUN: not wasm-ld -no-gc-sections --no-entry --shared-memory --max-memory=131072 %t.atomics.o -o %t.atomics.wasm 2>&1 | FileCheck %s --check-prefix ERROR
; bulk memory, unshared memory => active segments
; RUN: wasm-ld -no-gc-sections --no-entry %t.bulk-mem.o -o %t.bulk-mem.wasm
; RUN: obj2yaml %t.bulk-mem.wasm | FileCheck %s --check-prefixes ACTIVE,ACTIVE32
; bulk memory, unshared memory, wasm64 => active segments
; RUN: wasm-ld -mwasm64 -no-gc-sections --no-entry %t.bulk-mem64.o -o %t.bulk-mem64.wasm
; RUN: obj2yaml %t.bulk-mem64.wasm | FileCheck %s --check-prefixes ACTIVE,ACTIVE64
; atomics, bulk memory, shared memory => passive segments
; RUN: wasm-ld -no-gc-sections --no-entry --shared-memory --max-memory=131072 %t.atomics.bulk-mem.o -o %t.atomics.bulk-mem.wasm
; RUN: obj2yaml %t.atomics.bulk-mem.wasm | FileCheck %s --check-prefix PASSIVE
; RUN: llvm-objdump --disassemble-symbols=__wasm_call_ctors,__wasm_init_memory --no-show-raw-insn --no-leading-addr %t.atomics.bulk-mem.wasm | FileCheck %s --check-prefixes DIS,NOPIC-DIS -DPTR=i32
; atomics, bulk memory, shared memory, wasm64 => passive segments
; RUN: wasm-ld -mwasm64 -no-gc-sections --no-entry --shared-memory --max-memory=131072 %t.atomics.bulk-mem64.o -o %t.atomics.bulk-mem64.wasm
; RUN: obj2yaml %t.atomics.bulk-mem64.wasm | FileCheck %s --check-prefix PASSIVE
; RUN: llvm-objdump --disassemble-symbols=__wasm_call_ctors,__wasm_init_memory --no-show-raw-insn --no-leading-addr %t.atomics.bulk-mem64.wasm | FileCheck %s --check-prefixes DIS,NOPIC-DIS -DPTR=i64
; Also test in combination with PIC/pie
; RUN: wasm-ld --experimental-pic -pie -no-gc-sections --no-entry --shared-memory --max-memory=131072 %t.atomics.bulk-mem.pic.o -o %t.pic.wasm
; RUN: obj2yaml %t.pic.wasm | FileCheck %s --check-prefixes PASSIVE-PIC,PASSIVE32-PIC
; RUN: llvm-objdump --disassemble-symbols=__wasm_call_ctors,__wasm_init_memory --no-show-raw-insn --no-leading-addr %t.pic.wasm | FileCheck %s --check-prefixes DIS,PIC-DIS -DPTR=i32
; Also test in combination with PIC/pie + wasm64
; RUN: wasm-ld -mwasm64 --experimental-pic -pie -no-gc-sections --no-entry --shared-memory --max-memory=131072 %t.atomics.bulk-mem.pic-mem64.o -o %t.pic-mem64.wasm
; RUN: obj2yaml %t.pic-mem64.wasm | FileCheck %s --check-prefixes PASSIVE-PIC,PASSIVE64-PIC
; RUN: llvm-objdump --disassemble-symbols=__wasm_call_ctors,__wasm_init_memory --no-show-raw-insn --no-leading-addr %t.pic-mem64.wasm | FileCheck %s --check-prefixes DIS,PIC-DIS -DPTR=i64
@a = hidden global [6 x i8] c"hello\00", align 1
@b = hidden global [8 x i8] c"goodbye\00", align 1
@c = hidden global [10000 x i8] zeroinitializer, align 1
@d = hidden global i32 42, align 4
@e = private constant [9 x i8] c"constant\00", align 1
@f = private constant i8 43, align 4
@g = thread_local global i32 99, align 4
; ERROR: 'bulk-memory' feature must be used in order to use shared memory
; ACTIVE-LABEL: - Type: CODE
; ACTIVE-NEXT: Functions:
; ACTIVE-NEXT: - Index: 0
; ACTIVE-NEXT: Locals: []
; ACTIVE-NEXT: Body: 0B
; ACTIVE-NEXT: - Type: DATA
; ACTIVE-NEXT: Segments:
; ACTIVE-NEXT: - SectionOffset: 7
; ACTIVE-NEXT: InitFlags: 0
; ACTIVE-NEXT: Offset:
; ACTIVE32-NEXT: Opcode: I32_CONST
; ACTIVE64-NEXT: Opcode: I64_CONST
; ACTIVE-NEXT: Value: 1024
; ACTIVE-NEXT: Content: 636F6E7374616E74000000002B
; ACTIVE-NEXT: - SectionOffset: 26
; ACTIVE-NEXT: InitFlags: 0
; ACTIVE-NEXT: Offset:
; ACTIVE32-NEXT: Opcode: I32_CONST
; ACTIVE64-NEXT: Opcode: I64_CONST
; ACTIVE-NEXT: Value: 1040
; ACTIVE-NEXT: Content: 68656C6C6F00676F6F646279650000002A000000
; ACTIVE-NEXT: - Type: CUSTOM
; ACTIVE-NEXT: Name: name
; ACTIVE-NEXT: FunctionNames:
; ACTIVE-NEXT: - Index: 0
; ACTIVE-NEXT: Name: __wasm_call_ctors
; PASSIVE-LABEL: - Type: START
; PASSIVE-NEXT: StartFunction: 2
; PASSIVE-LABEL: - Type: DATACOUNT
; PASSIVE-NEXT: Count: 3
; PASSIVE-LABEL: - Type: CODE
; PASSIVE-NEXT: Functions:
; PASSIVE-NEXT: - Index: 0
; PASSIVE-NEXT: Locals: []
; PASSIVE-NEXT: Body: 0B
; PASSIVE-NEXT: - Index: 1
; PASSIVE-NEXT: Locals: []
; PASSIVE-NEXT: Body: {{.*}}
; PASSIVE-NEXT: - Index: 2
; PASSIVE-NEXT: Locals: []
; PASSIVE-NEXT: Body: {{.*}}
; PASSIVE-NEXT: - Type: DATA
; PASSIVE-NEXT: Segments:
; PASSIVE-NEXT: - SectionOffset: 3
; PASSIVE-NEXT: InitFlags: 1
; PASSIVE-NEXT: Content: '63000000'
; PASSIVE-NEXT: - SectionOffset: 9
; PASSIVE-NEXT: InitFlags: 1
; PASSIVE-NEXT: Content: 636F6E7374616E74000000002B
; PASSIVE-NEXT: - SectionOffset: 24
; PASSIVE-NEXT: InitFlags: 1
; PASSIVE-NEXT: Content: 68656C6C6F00676F6F646279650000002A000000
; PASSIVE-NEXT: - Type: CUSTOM
; PASSIVE-NEXT: Name: name
; PASSIVE-NEXT: FunctionNames:
; PASSIVE-NEXT: - Index: 0
; PASSIVE-NEXT: Name: __wasm_call_ctors
; PASSIVE-NEXT: - Index: 1
; PASSIVE-NEXT: Name: __wasm_init_tls
; PASSIVE-NEXT: - Index: 2
; PASSIVE-NEXT: Name: __wasm_init_memory
; PASSIVE-PIC: - Type: START
; PASSIVE-PIC-NEXT: StartFunction: 2
; PASSIVE-PIC-NEXT: - Type: DATACOUNT
; PASSIVE-PIC-NEXT: Count: 3
; PASSIVE-PIC-NEXT: - Type: CODE
; PASSIVE-PIC-NEXT: Functions:
; PASSIVE-PIC-NEXT: - Index: 0
; PASSIVE-PIC-NEXT: Locals: []
; PASSIVE-PIC-NEXT: Body: 10030B
; PASSIVE-PIC-NEXT: - Index: 1
; PASSIVE-PIC-NEXT: Locals: []
; PASSIVE-PIC-NEXT: Body: {{.*}}
; PASSIVE-PIC-NEXT: - Index: 2
; PASSIVE-PIC-NEXT: Locals:
; PASSIVE32-PIC-NEXT: - Type: I32
; PASSIVE64-PIC-NEXT: - Type: I64
; PASSIVE-PIC-NEXT: Count: 2
; PASSIVE-PIC-NEXT: Body: {{.*}}
; PASSIVE-PIC-NEXT: - Index: 3
; PASSIVE-PIC-NEXT: Locals: []
; PASSIVE-PIC-NEXT: Body: 0B
; PASSIVE-PIC-NEXT: - Type: DATA
; PASSIVE-PIC-NEXT: Segments:
; PASSIVE-PIC-NEXT: - SectionOffset: 3
; PASSIVE-PIC-NEXT: InitFlags: 1
; PASSIVE-PIC-NEXT: Content: '63000000'
; PASSIVE-PIC-NEXT: - SectionOffset: 9
; PASSIVE-PIC-NEXT: InitFlags: 1
; PASSIVE-PIC-NEXT: Content: 636F6E7374616E74000000002B
; PASSIVE-PIC-NEXT: - SectionOffset: 24
; PASSIVE-PIC-NEXT: InitFlags: 1
; PASSIVE-PIC-NEXT: Content: 68656C6C6F00676F6F646279650000002A000000
; PASSIVE-PIC-NEXT: - Type: CUSTOM
; PASSIVE-PIC-NEXT: Name: name
; PASSIVE-PIC-NEXT: FunctionNames:
; PASSIVE-PIC-NEXT: - Index: 0
; PASSIVE-PIC-NEXT: Name: __wasm_call_ctors
; PASSIVE-PIC-NEXT: - Index: 1
; PASSIVE-PIC-NEXT: Name: __wasm_init_tls
; PASSIVE-PIC-NEXT: - Index: 2
; PASSIVE-PIC-NEXT: Name: __wasm_init_memory
; PASSIVE-PIC-NEXT: - Index: 3
; PASSIVE-PIC-NEXT: Name: __wasm_apply_data_relocs
; In PIC mode __wasm_call_ctors contains a call to __wasm_apply_data_relocs
; In non-PIC mode __wasm_call_ctors is an emtpy function since there are
; no data relocations.
; DIS-LABEL: <__wasm_call_ctors>:
; DIS-EMPTY:
; PIC-DIS-NEXT: call 3
; DIS-NEXT: end
; DIS-LABEL: <__wasm_init_memory>:
; PIC-DIS: .local [[PTR]]
; PIC-DIS-NEXT: global.get 1
; PIC-DIS-NEXT: [[PTR]].const 10040
; PIC-DIS-NEXT: [[PTR]].add
; PIC-DIS-NEXT: local.set 0
; DIS: block
; DIS-NEXT: block
; DIS-NEXT: block
; NOPIC-DIS-NEXT: [[PTR]].const 11064
; PIC-DIS-NEXT: local.get 0
; DIS-NEXT: i32.const 0
; DIS-NEXT: i32.const 1
; DIS-NEXT: i32.atomic.rmw.cmpxchg 0
; DIS-NEXT: br_table {0, 1, 2} # 1: down to label1
; DIS-NEXT: # 2: down to label0
; DIS-NEXT: end
; NOPIC-DIS-NEXT: [[PTR]].const 1024
; NOPIC-DIS-NEXT: [[PTR]].const 1024
; NOPIC-DIS-NEXT: global.set 1
; PIC-DIS-NEXT: [[PTR]].const 0
; PIC-DIS-NEXT: global.get 1
; PIC-DIS-NEXT: [[PTR]].add
; PIC-DIS-NEXT: local.tee 1
; PIC-DIS-NEXT: global.set {{\d*}}
; PIC-DIS-NEXT: local.get 1
; DIS-NEXT: i32.const 0
; DIS-NEXT: i32.const 4
; DIS-NEXT: memory.init 0, 0
; NOPIC-DIS-NEXT: [[PTR]].const 1028
; PIC-DIS-NEXT: [[PTR]].const 4
; PIC-DIS-NEXT: global.get 1
; PIC-DIS-NEXT: [[PTR]].add
; DIS-NEXT: i32.const 0
; DIS-NEXT: i32.const 13
; DIS-NEXT: memory.init 1, 0
; NOPIC-DIS-NEXT: [[PTR]].const 1044
; PIC-DIS-NEXT: [[PTR]].const 20
; PIC-DIS-NEXT: global.get 1
; PIC-DIS-NEXT: [[PTR]].add
; DIS-NEXT: i32.const 0
; DIS-NEXT: i32.const 20
; DIS-NEXT: memory.init 2, 0
; NOPIC-DIS-NEXT: [[PTR]].const 1064
; PIC-DIS-NEXT: [[PTR]].const 40
; PIC-DIS-NEXT: global.get 1
; PIC-DIS-NEXT: [[PTR]].add
; DIS-NEXT: i32.const 0
; DIS-NEXT: i32.const 10000
; DIS-NEXT: memory.fill 0
; NOPIC-DIS-NEXT: [[PTR]].const 11064
; PIC-DIS-NEXT: local.get 0
; DIS-NEXT: i32.const 2
; DIS-NEXT: i32.atomic.store 0
; NOPIC-DIS-NEXT: [[PTR]].const 11064
; PIC-DIS-NEXT: local.get 0
; DIS-NEXT: i32.const -1
; DIS-NEXT: memory.atomic.notify 0
; DIS-NEXT: drop
; DIS-NEXT: br 1 # 1: down to label1
; DIS-NEXT: end
; NOPIC-DIS-NEXT: [[PTR]].const 11064
; PIC-DIS-NEXT: local.get 0
; DIS-NEXT: i32.const 1
; DIS-NEXT: i64.const -1
; DIS-NEXT: memory.atomic.wait32 0
; DIS-NEXT: drop
; DIS-NEXT: end
; DIS-NEXT: data.drop 1
; DIS-NEXT: data.drop 2
; DIS-NEXT: end
Reference in New Issue View Git Blame Copy Permalink