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llvm-project/lld/test/wasm/compress-relocs.ll

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Revert r339490 to match revert of llvm r339474 in r339630. llvm-svn: 339635
2018-08-14 09:23:54 +08:00
; RUN: llc -filetype=obj %s -o %t.o
[WebAssembly] call_indirect issues table number relocs If the reference-types feature is enabled, call_indirect will explicitly reference its corresponding function table via TABLE_NUMBER relocations against a table symbol. Also, as before, address-taken functions can also cause the function table to be created, only with reference-types they additionally cause a symbol table entry to be emitted. Differential Revision: https://reviews.llvm.org/D90948
2021-02-12 18:22:13 +08:00
; RUN: llvm-mc -mattr=+reference-types -filetype=obj -triple=wasm32-unknown-unknown %p/Inputs/call-indirect.s -o %t2.o
[WebAssembly] Add --[no]-export-dynamic to replace --export-default In a very recent change I introduced a --no-export-default flag but after conferring with others it seems that this feature already exists in gnu GNU ld and lld in the form the --export-dynamic flag which is off by default. This change replaces export-default with export-dynamic and also changes the default to match the traditional linker behaviour. Now, by default, only the entry point is exported. If other symbols are required by the embedder then --export-dynamic or --export can be used to export all visibility hidden symbols or individual symbols respectively. This change touches a lot of tests that were relying on symbols being exported by default. I imagine it will also effect many users but do think the change is worth it match of the traditional behaviour and flag names. Differential Revision: https://reviews.llvm.org/D52587 llvm-svn: 343265
2018-09-28 05:06:25 +08:00
; RUN: wasm-ld --export-dynamic -o %t.wasm %t2.o %t.o
[WebAssembly] Add option to remove LEB padding at relocate sites This change adds the ability for lld to remove LEB padding from code section. This effectively shrinks the size of the resulting binary in proportion to the number of code relocations. Since there will be a performance cost this is currently only active for -O1 and above. Some toolchains may instead want to perform this compression as a post linker step (for example running a binary through binaryen will automatically compress these values). I imagine we might want to make this the default in the future. Differential Revision: https://reviews.llvm.org/D46416 llvm-svn: 332783
2018-05-19 07:28:05 +08:00
; RUN: obj2yaml %t.wasm | FileCheck %s
[WebAssembly] Add --[no]-export-dynamic to replace --export-default In a very recent change I introduced a --no-export-default flag but after conferring with others it seems that this feature already exists in gnu GNU ld and lld in the form the --export-dynamic flag which is off by default. This change replaces export-default with export-dynamic and also changes the default to match the traditional linker behaviour. Now, by default, only the entry point is exported. If other symbols are required by the embedder then --export-dynamic or --export can be used to export all visibility hidden symbols or individual symbols respectively. This change touches a lot of tests that were relying on symbols being exported by default. I imagine it will also effect many users but do think the change is worth it match of the traditional behaviour and flag names. Differential Revision: https://reviews.llvm.org/D52587 llvm-svn: 343265
2018-09-28 05:06:25 +08:00
; RUN: wasm-ld --export-dynamic -O2 -o %t-opt.wasm %t2.o %t.o
[WebAssembly] Don't compress LEBs by default LEB compression breaks debug info so we don't want to enable it by default, even at high optimization levels. Differential Revision: https://reviews.llvm.org/D50729 llvm-svn: 340073
2018-08-18 03:42:46 +08:00
; RUN: obj2yaml %t-opt.wasm | FileCheck %s
; RUN: not wasm-ld --compress-relocations -o %t-compressed.wasm %t2.o %t.o 2>&1 | FileCheck %s -check-prefix=ERROR
[WebAssembly] Add --[no]-export-dynamic to replace --export-default In a very recent change I introduced a --no-export-default flag but after conferring with others it seems that this feature already exists in gnu GNU ld and lld in the form the --export-dynamic flag which is off by default. This change replaces export-default with export-dynamic and also changes the default to match the traditional linker behaviour. Now, by default, only the entry point is exported. If other symbols are required by the embedder then --export-dynamic or --export can be used to export all visibility hidden symbols or individual symbols respectively. This change touches a lot of tests that were relying on symbols being exported by default. I imagine it will also effect many users but do think the change is worth it match of the traditional behaviour and flag names. Differential Revision: https://reviews.llvm.org/D52587 llvm-svn: 343265
2018-09-28 05:06:25 +08:00
; RUN: wasm-ld --export-dynamic --strip-debug --compress-relocations -o %t-compressed.wasm %t2.o %t.o
[WebAssembly] Add option to remove LEB padding at relocate sites This change adds the ability for lld to remove LEB padding from code section. This effectively shrinks the size of the resulting binary in proportion to the number of code relocations. Since there will be a performance cost this is currently only active for -O1 and above. Some toolchains may instead want to perform this compression as a post linker step (for example running a binary through binaryen will automatically compress these values). I imagine we might want to make this the default in the future. Differential Revision: https://reviews.llvm.org/D46416 llvm-svn: 332783
2018-05-19 07:28:05 +08:00
; RUN: obj2yaml %t-compressed.wasm | FileCheck %s -check-prefix=COMPRESS
target triple = "wasm32-unknown-unknown-wasm"
define i32 @foo() {
entry:
ret i32 2
}
define void @_start() local_unnamed_addr {
entry:
ret void
}
[WebAssembly] Don't compress LEBs by default LEB compression breaks debug info so we don't want to enable it by default, even at high optimization levels. Differential Revision: https://reviews.llvm.org/D50729 llvm-svn: 340073
2018-08-18 03:42:46 +08:00
; ERROR: wasm-ld: error: --compress-relocations is incompatible with output debug information. Please pass --strip-debug or --strip-all
[WebAssembly] call_indirect issues table number relocs If the reference-types feature is enabled, call_indirect will explicitly reference its corresponding function table via TABLE_NUMBER relocations against a table symbol. Also, as before, address-taken functions can also cause the function table to be created, only with reference-types they additionally cause a symbol table entry to be emitted. Differential Revision: https://reviews.llvm.org/D90948
2021-02-12 18:22:13 +08:00
; CHECK: Body: 41002802808880800011808080800080808080001A41002802848880800011818080800080808080001A0B
[WebAssembly][lld] Fix call-indirect.s test to validate Add missing address operand, so that we can validate the output files. Depends on D92315. Differential Revision: https://reviews.llvm.org/D92320
2020-11-30 21:56:57 +08:00
; COMPRESS: Body: 4100280280081100001A4100280284081101001A0B