8d396acac3
This CL changes the asm syntax for section flags, making them more like ELF (previously "passive" was the only option). Now we also allow "G" to designate COMDAT group sections. In these sections we set the appropriate comdat flag on function symbols, and also avoid auto-creating a new section for them. This also adds asm-based tests for the changes D92691 to go along with the direct-to-object tests. Differential Revision: https://reviews.llvm.org/D92952 This is a reland of rG4564553b8d8a with a fix to the lit pipeline in llvm/test/MC/WebAssembly/comdat.ll
139 lines
5.3 KiB
LLVM
139 lines
5.3 KiB
LLVM
; RUN: llc -filetype=obj %s -o - | obj2yaml | FileCheck %s
|
|
; RUN: llc -filetype=asm %s -asm-verbose=false -o - | FileCheck --check-prefix=ASM %s
|
|
; RUN: llc -filetype=asm %s -o - | llvm-mc -triple=wasm32 -filetype=obj -o - | obj2yaml | FileCheck %s
|
|
; These RUN lines verify the ll direct-to-object path, the ll->asm path, and the
|
|
; object output via asm.
|
|
|
|
target triple = "wasm32-unknown-unknown"
|
|
|
|
; Import a function just so we can check the index arithmetic for
|
|
; WASM_COMDAT_FUNCTION entries is performed correctly
|
|
declare i32 @funcImport()
|
|
define i32 @callImport() {
|
|
entry:
|
|
%call = call i32 @funcImport()
|
|
ret i32 %call
|
|
}
|
|
|
|
; Function in its own COMDAT
|
|
$basicInlineFn = comdat any
|
|
define linkonce_odr i32 @basicInlineFn() #1 comdat {
|
|
ret i32 0
|
|
}
|
|
|
|
; Global, data, and function in same COMDAT
|
|
$sharedComdat = comdat any
|
|
@constantData = weak_odr constant [3 x i8] c"abc", comdat($sharedComdat)
|
|
define linkonce_odr i32 @sharedFn() #1 comdat($sharedComdat) {
|
|
ret i32 0
|
|
}
|
|
|
|
; CHECK: Sections:
|
|
; CHECK-NEXT: - Type: TYPE
|
|
; CHECK-NEXT: Signatures:
|
|
; CHECK-NEXT: - Index: 0
|
|
; CHECK-NEXT: ParamTypes: []
|
|
; CHECK-NEXT: ReturnTypes:
|
|
; CHECK-NEXT: - I32
|
|
; CHECK-NEXT: - Type: IMPORT
|
|
; CHECK-NEXT: Imports:
|
|
; CHECK-NEXT: - Module: env
|
|
; CHECK-NEXT: Field: __linear_memory
|
|
; CHECK-NEXT: Kind: MEMORY
|
|
; CHECK-NEXT: Memory:
|
|
; CHECK-NEXT: Initial: 0x1
|
|
; CHECK-NEXT: - Module: env
|
|
; CHECK-NEXT: Field: funcImport
|
|
; CHECK-NEXT: Kind: FUNCTION
|
|
; CHECK-NEXT: SigIndex: 0
|
|
; CHECK-NEXT: - Type: FUNCTION
|
|
; CHECK-NEXT: FunctionTypes: [ 0, 0, 0 ]
|
|
; CHECK-NEXT: - Type: DATACOUNT
|
|
; CHECK-NEXT: Count: 1
|
|
; CHECK-NEXT: - Type: CODE
|
|
; CHECK-NEXT: Relocations:
|
|
; CHECK-NEXT: - Type: R_WASM_FUNCTION_INDEX_LEB
|
|
; CHECK-NEXT: Index: 1
|
|
; CHECK-NEXT: Offset: 0x4
|
|
; CHECK-NEXT: Functions:
|
|
; CHECK-NEXT: - Index: 1
|
|
; CHECK-NEXT: Locals:
|
|
; CHECK-NEXT: Body: 1080808080000B
|
|
; CHECK-NEXT: - Index: 2
|
|
; CHECK-NEXT: Locals:
|
|
; CHECK-NEXT: Body: 41000B
|
|
; CHECK-NEXT: - Index: 3
|
|
; CHECK-NEXT: Locals:
|
|
; CHECK-NEXT: Body: 41000B
|
|
; CHECK-NEXT: - Type: DATA
|
|
; CHECK-NEXT: Segments:
|
|
; CHECK-NEXT: - SectionOffset: 6
|
|
; CHECK-NEXT: InitFlags: 0
|
|
; CHECK-NEXT: Offset:
|
|
; CHECK-NEXT: Opcode: I32_CONST
|
|
; CHECK-NEXT: Value: 0
|
|
; CHECK-NEXT: Content: '616263'
|
|
; CHECK-NEXT: - Type: CUSTOM
|
|
; CHECK-NEXT: Name: linking
|
|
; CHECK-NEXT: Version: 2
|
|
; CHECK-NEXT: SymbolTable:
|
|
; CHECK-NEXT: - Index: 0
|
|
; CHECK-NEXT: Kind: FUNCTION
|
|
; CHECK-NEXT: Name: callImport
|
|
; CHECK-NEXT: Flags: [ ]
|
|
; CHECK-NEXT: Function: 1
|
|
; CHECK-NEXT: - Index: 1
|
|
; CHECK-NEXT: Kind: FUNCTION
|
|
; CHECK-NEXT: Name: funcImport
|
|
; CHECK-NEXT: Flags: [ UNDEFINED ]
|
|
; CHECK-NEXT: Function: 0
|
|
; CHECK-NEXT: - Index: 2
|
|
; CHECK-NEXT: Kind: FUNCTION
|
|
; CHECK-NEXT: Name: basicInlineFn
|
|
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
|
|
; CHECK-NEXT: Function: 2
|
|
; CHECK-NEXT: - Index: 3
|
|
; CHECK-NEXT: Kind: FUNCTION
|
|
; CHECK-NEXT: Name: sharedFn
|
|
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
|
|
; CHECK-NEXT: Function: 3
|
|
; CHECK-NEXT: - Index: 4
|
|
; CHECK-NEXT: Kind: DATA
|
|
; CHECK-NEXT: Name: constantData
|
|
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
|
|
; CHECK-NEXT: Segment: 0
|
|
; CHECK-NEXT: Size: 3
|
|
; CHECK-NEXT: SegmentInfo:
|
|
; CHECK-NEXT: - Index: 0
|
|
; CHECK-NEXT: Name: .rodata.constantData
|
|
; CHECK-NEXT: Alignment: 0
|
|
; CHECK-NEXT: Flags: [ ]
|
|
; CHECK-NEXT: Comdats:
|
|
; CHECK-NEXT: Name: basicInlineFn
|
|
; CHECK-NEXT: Entries:
|
|
; CHECK-NEXT: - Kind: FUNCTION
|
|
; CHECK-NEXT: Index: 2
|
|
; CHECK-NEXT: Name: sharedComdat
|
|
; CHECK-NEXT: Entries:
|
|
; CHECK-NEXT: - Kind: FUNCTION
|
|
; CHECK-NEXT: Index: 3
|
|
; CHECK-NEXT: - Kind: DATA
|
|
; CHECK-NEXT: Index: 0
|
|
; CHECK-NEXT: ...
|
|
|
|
|
|
; ASM: .section .text.basicInlineFn,"G",@,basicInlineFn,comdat
|
|
; ASM-NEXT: .weak basicInlineFn
|
|
; ASM-NEXT: .type basicInlineFn,@function
|
|
; ASM-NEXT: basicInlineFn:
|
|
|
|
; ASM: .section .text.sharedFn,"G",@,sharedComdat,comdat
|
|
; ASM-NEXT: .weak sharedFn
|
|
; ASM-NEXT: .type sharedFn,@function
|
|
; ASM-NEXT: sharedFn:
|
|
|
|
; ASM: .type constantData,@object
|
|
; ASM-NEXT: .section .rodata.constantData,"G",@,sharedComdat,comdat
|
|
; ASM-NEXT: .weak constantData
|
|
; ASM-NEXT: constantData:
|