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Heejin Ahn 49e7ee4dd5 [WebAssembly] Compare functions by names in Emscripten Sjlj 
Summary:
This removes all string constants for function names and compares
functions by string directly when needed. Many of these constants are
used only once or twice so the benefit of defining them separately is
not very clear, and this actually fixes a bug.

When we already have a `malloc` declaration which is an alias to
something else within the module,
```
@malloc = weak hidden alias i8* (i32), i8* (i32)* @dlmalloc
```
(this happens compiling with emscripten with `-s WASM_OBJECT_FILES=0`
because all bc files are merged before being fed into `wasm-ld` which
runs the backend optimizations as LTO)

`Module::getFunction("malloc")` in `canLongjmp` returns `nullptr`
because `Module::getFunction` dyncasts pointer into `Function`, but the
alias is a `GlobalValue` but not a `Function`. This makes `canLongjmp`
return false for `malloc` in this case, and we end up adding a lot of
longjmp handling code around malloc. This is not only a code size
increase but actually a bug because `malloc` is used in the entry block
when preparing for setjmp tables for emscripten sjlj handling, and this
makes initial setjmp preparation, which has to happen in the entry
block, move to another split block, and this interferes with SSA update
later.

This also adds two more functions, `getTempRet0` and `setTempRet0`, in
the list of not longjmp-able functions.

Fixes https://github.com/emscripten-core/emscripten/issues/8935.

Reviewers: sbc100

Subscribers: mehdi_amini, jgravelle-google, hiraditya, sunfish, dexonsmith, dschuff, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67129

llvm-svn: 370828
 		2019-09-03 22:26:49 +00:00
..
PR40172.ll [WebAssembly][FastISel] Do not assume naive CmpInst lowering 2019-01-14 22:03:43 +00:00
PR40267.ll [LegalizeVectorTypes] Allow illegal indices when splitting extract_vector_elt 2019-01-31 00:35:37 +00:00
PR41149.ll [SelectionDAG] Add scalarization of ABS node (PR41149) 2019-03-21 11:18:54 +00:00
PR41841.ll [WebAssembly] Don't assume that zext/sext result is i32/i64 in fast isel (PR41841) 2019-05-13 19:40:18 +00:00
add-prototypes-conflict.ll [WebAssembly] Fix a typo in a test file name 2019-07-09 01:21:04 +00:00
add-prototypes.ll [WebAssembly] Make sret parameter work with AddMissingPrototypes 2019-07-09 02:10:33 +00:00
address-offsets.ll [WebAssembly] Limit PIC support to the Emscripten target 2019-06-05 20:01:01 +00:00
atomic-fence.ll [WebAssembly] Add atomic.fence instruction 2019-08-28 23:13:43 +00:00
atomic-fence.mir [WebAssembly] Add atomic.fence instruction 2019-08-28 23:13:43 +00:00
atomic-mem-consistency.ll [WebAssembly] Remove uses of ThreadModel 2019-02-28 18:39:08 +00:00
atomic-rmw.ll [WebAssembly] Remove uses of ThreadModel 2019-02-28 18:39:08 +00:00
bulk-memory-intrinsics.ll [WebAssembly] Bulk memory intrinsics and builtins 2019-02-13 22:11:16 +00:00
bulk-memory.ll [WebAssembly] Use named operands to identify loads and stores 2019-03-09 04:31:37 +00:00
byval.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
call-pic.ll [WebAssembly] Limit PIC support to the Emscripten target 2019-06-05 20:01:01 +00:00
call.ll [WebAssembly] Implement tail calls and unify tablegen call classes 2019-06-26 16:17:15 +00:00
cfg-stackify-dbg-skip.ll [WebAssembly] Run ExplicitLocals pass after CFGStackify 2019-03-30 09:29:57 +00:00
cfg-stackify-dbg.mir [WebAssembly] Handle END_LOOP in unreachable BB in CFGStackify 2019-03-29 19:36:51 +00:00
cfg-stackify-eh.ll [WebAssembly] Fix unwind destination mismatches in CFG stackify 2019-03-30 11:04:48 +00:00
cfg-stackify.ll [WebAssembly] Emit br_table for most switch instructions 2019-04-23 21:30:30 +00:00
cfi.ll [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
clear-cache.ll [WebAssembly] Print error message for llvm.clear_cache intrinsic 2019-07-11 05:55:47 +00:00
comparisons-f32.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
comparisons-f64.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
comparisons-i32.ll [WebAssembly][FastISel] Do not assume naive CmpInst lowering 2019-01-14 22:03:43 +00:00
comparisons-i64.ll [WebAssembly][FastISel] Do not assume naive CmpInst lowering 2019-01-14 22:03:43 +00:00
conv-trap.ll [WebAssembly] Disable MachineBlockPlacement pass 2019-03-05 20:35:34 +00:00
conv.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
copysign-casts.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
cpus.ll
…
custom-sections.ll [WebAssembly] Add languages from debug info to producers section 2019-01-18 02:47:48 +00:00
dbgvalue.ll
…
dead-vreg.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
divrem-constant.ll [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
eh-labels.mir [WebAssembly] Place 'try' and 'catch' correctly wrt EH_LABELs 2019-03-13 00:37:31 +00:00
eh-lsda.ll Reland "[WebAssembly] LSDA info generation" 2018-10-25 23:55:10 +00:00
exception.ll Fix __clang_call_termiante's argument for foreign exceptions 2019-08-11 06:24:07 +00:00
explicit-locals.mir [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
f16.ll [WebAssembly] Support f16 libcalls 2019-04-30 19:17:59 +00:00
f32.ll [SelectionDAG] Do minnum->minimum at legalization time instead of building time 2019-07-01 11:00:23 +00:00
f64.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
fast-isel-br-i1.ll [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
fast-isel-i24.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
fast-isel-i256.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
fast-isel-noreg.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
fast-isel.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
frem.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
func.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
function-bitcasts-varargs.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
function-bitcasts.ll [WebAssembly] Handle aliases in WebAssemblyFixFunctionBitcasts 2019-08-21 19:52:33 +00:00
function-info.mir [WebAssembly] Add CFGStacikfied field to WebAssemblyFunctionInfo 2019-03-26 17:46:14 +00:00
global.ll [WebAssembly] Remove uses of ThreadModel 2019-02-28 18:39:08 +00:00
global_dtors.ll [WebAssembly] Fix crash when @llvm.global_dtors is external 2019-03-01 00:12:13 +00:00
globl.ll
…
i32-load-store-alignment.ll Fix typo in comment 2019-01-09 14:20:20 +00:00
i32.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
i64-load-store-alignment.ll Fix typo in comment 2019-01-09 14:20:20 +00:00
i64.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
i128-returned.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
i128.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
ident.ll [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
immediates.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
implicit-def.ll [WebAssembly] Disable MachineBlockPlacement pass 2019-03-05 20:35:34 +00:00
import-module.ll [WebAssembly] Add codegen support for the import_field attribute 2019-02-01 22:27:34 +00:00
indirect-import.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
indirectbr.ll [WebAssembly] Enable IndirectBrExpandPass 2019-07-03 23:54:06 +00:00
inline-asm-m.ll [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
inline-asm-roundtrip.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
inline-asm.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
inlineasm-output-template.ll [AsmPrinter] refactor to support %c w/ GlobalAddress' 2019-04-26 18:45:04 +00:00
irreducible-cfg-exceptions.ll [WebAssembly] Improve readability of irreducibility tests 2019-03-19 05:10:39 +00:00
irreducible-cfg.ll [WebAssembly] Optimize the number of routing blocks in FixIrreducibleCFG 2019-03-30 01:31:11 +00:00
irreducible-cfg.mir [WebAssembly] Optimize the number of routing blocks in FixIrreducibleCFG 2019-03-30 01:31:11 +00:00
legalize.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
libcalls.ll [WebAssembly] Expand more SIMD float ops 2019-05-24 00:15:04 +00:00
lit.local.cfg
…
llround-conv-i32.ll [WebAssembly] Add the signature for the new llround builtin function 2019-05-21 23:06:34 +00:00
load-ext-atomic.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
load-ext.ll [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
load-store-i1.ll [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
load-store-pic.ll [WebAssembly] Limit PIC support to the Emscripten target 2019-06-05 20:01:01 +00:00
load.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
lower-em-ehsjlj-options.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
lower-em-exceptions-whitelist.ll [WebAssembly] Fix conflict between ret legalization and sjlj 2019-08-05 21:36:09 +00:00
lower-em-exceptions.ll [WebAssembly] Fix conflict between ret legalization and sjlj 2019-08-05 21:36:09 +00:00
lower-em-sjlj-alias.ll [WebAssembly] Compare functions by names in Emscripten Sjlj 2019-09-03 22:26:49 +00:00
lower-em-sjlj-sret.ll [WebAssembly] Combine emscripten SjLj tests 2019-08-26 21:41:17 +00:00
lower-em-sjlj.ll [WebAssembly] Fix SSA rebuilding in SjLj transformation 2019-08-26 21:51:35 +00:00
lower-global-dtors.ll [WebAssembly] Disable MachineBlockPlacement pass 2019-03-05 20:35:34 +00:00
main-declaration.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
main-no-args.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
main-three-args.ll [WebAssembly] Re-enable main-function signature rewriting 2019-01-29 10:53:42 +00:00
main-with-args.ll [WebAssembly] Re-enable main-function signature rewriting 2019-01-29 10:53:42 +00:00
mem-intrinsics.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
memory-addr32.ll [WebAssembly] Remove tests for old intrinsics. 2019-01-14 18:25:29 +00:00
muloti4.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
multi-return.ll [CodeGen] Fix lowering for returning the result of an extractvalue 2019-08-30 04:33:22 +00:00
multivalue.ll [WebAssembly] Add multivalue and tail-call target features 2019-05-23 17:26:47 +00:00
mutable-globals.ll [WebAssembly] Add mutable globals feature 2019-03-29 22:00:18 +00:00
negative-base-reg.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
non-executable-stack.ll
…
null-streamer.ll [WebAssembly] Add null streamer support 2018-11-18 11:58:47 +00:00
offset-atomics.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
offset-fastisel.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
offset-folding.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
offset.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
phi.ll [WebAssembly] Make LBB markers not affected by test order 2019-04-23 21:17:03 +00:00
reg-argument.mir [WebAssembly] Add missing utility methods for exnref type 2019-07-15 23:04:00 +00:00
reg-copy.mir [WebAssembly] Add missing utility methods for exnref type 2019-07-15 23:04:00 +00:00
reg-stackify.ll [WebAssembly] Assembler/InstPrinter: support call_indirect type index. 2019-08-01 18:08:26 +00:00
return-address-emscripten.ll [WebAssembly] Implement __builtin_return_address for emscripten 2019-05-23 01:24:01 +00:00
return-address-unknown.ll [WebAssembly] Implement __builtin_return_address for emscripten 2019-05-23 01:24:01 +00:00
return-int32.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
return-void.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
returned.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
select.ll [WebAssembly] Fix select of and (PR40805) 2019-02-23 18:59:01 +00:00
signext-arg.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
signext-inreg.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
signext-zeroext.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
simd-arith.ll Revert r368276 "[TargetLowering] SimplifyDemandedBits - call SimplifyMultipleUseDemandedBits for ISD::EXTRACT_VECTOR_ELT" 2019-08-13 09:33:25 +00:00
simd-bitcasts.ll [WebAssembly] Add unimplemented-simd128 subtarget feature 2019-01-10 22:32:11 +00:00
simd-build-pair.ll [WebAssembly] Expand BUILD_PAIR nodes 2019-01-28 23:44:31 +00:00
simd-build-vector.ll [WebAssembly] Fix a regression selecting negative build_vector lanes 2019-01-31 23:22:39 +00:00
simd-comparisons.ll [WebAssembly] Lower SIMD nnan setcc nodes 2019-03-19 00:55:34 +00:00
simd-conversions.ll [WebAssembly] Add unimplemented-simd128 subtarget feature 2019-01-10 22:32:11 +00:00
simd-ext-load-trunc-store.ll [WebAssembly] Add unimplemented-simd128 subtarget feature 2019-01-10 22:32:11 +00:00
simd-extended-extract.ll Revert r368276 "[TargetLowering] SimplifyDemandedBits - call SimplifyMultipleUseDemandedBits for ISD::EXTRACT_VECTOR_ELT" 2019-08-13 09:33:25 +00:00
simd-illegal-signext.ll [WebAssembly] Implement ReplaceNodeResults to fix a SIMD crash 2019-05-23 18:09:26 +00:00
simd-intrinsics.ll [WebAssembly] Add SIMD QFMA/QFMS 2019-08-31 00:12:29 +00:00
simd-load-store-alignment.ll [WebAssembly] Add unimplemented-simd128 subtarget feature 2019-01-10 22:32:11 +00:00
simd-nested-shuffles.ll [WebAssembly] Fix invalid machine instrs in -O0, verify in tests 2018-12-21 06:58:15 +00:00
simd-noopt.ll [WebAssembly][NFC] Elaborate on simd-noopt test comment 2019-01-02 20:43:08 +00:00
simd-offset.ll [WebAssembly] Add unimplemented-simd128 subtarget feature 2019-01-10 22:32:11 +00:00
simd-reductions.ll [WebAssembly] Optimize ISel for SIMD Boolean reductions 2019-06-19 00:02:13 +00:00
simd-scalar-to-vector.ll [WebAssembly] Lower SCALAR_TO_VECTOR to splats 2019-01-29 23:44:48 +00:00
simd-select.ll [WebAssembly] Fix select of and (PR40805) 2019-02-23 18:59:01 +00:00
simd-sext-inreg.ll [WebAssembly] Add unimplemented-simd128 subtarget feature 2019-01-10 22:32:11 +00:00
simd-unsupported.ll [WebAssembly] Expand more SIMD float ops 2019-05-24 00:15:04 +00:00
simd.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
stack-alignment.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
stack-insts.ll [WebAssembly] Fix assembler parsing of br_table. 2018-12-17 22:04:44 +00:00
stack-protector.ll [WebAssembly] Define the signature for __stack_chk_fail 2019-04-29 21:09:44 +00:00
store-trunc-atomic.ll [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
store-trunc.ll [WebAssembly] Added default stack-only instruction mode for MC. 2018-08-27 15:45:51 +00:00
store.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
switch.ll [WebAssembly] Make LBB markers not affected by test order 2019-04-23 21:17:03 +00:00
tailcall.ll [WebAssembly] Do not emit tail calls with return type mismatch 2019-07-30 18:08:39 +00:00
target-features-tls.ll [WebAssembly] Implement thread-local storage (local-exec model) 2019-07-16 22:00:45 +00:00
target-features.ll [WebAssembly] Remove fptosi(undef) and fptoui(undef) from reduced test case. 2019-06-03 16:21:58 +00:00
tls-general-dynamic.ll [WebAssembly] Compute and export TLS block alignment 2019-07-19 23:34:16 +00:00
tls-local-exec.ll [WebAssembly] Compile all TLS on Emscripten as local-exec 2019-07-16 22:22:08 +00:00
umulo-128-legalisation-lowering.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
umulo-i64.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
unreachable.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
unsupported-function-bitcasts.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
unused-argument.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
userstack.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
varargs.ll [WebAssembly] Properly align fp128 arguments in outgoing varargs arguments 2019-02-26 05:20:19 +00:00
vector-sdiv.ll [WebAssembly] Convert remaining tests from elf to wasm output format 2018-07-02 16:03:49 +00:00
vtable.ll [WebAssembly] Remove uses of ThreadModel 2019-02-28 18:39:08 +00:00
wasmehprepare.ll [WebAssembly] Add immarg attribute to intrinsics 2019-03-19 05:02:30 +00:00