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llvm-project/llvm/test/CodeGen/RISCV/dwarf-eh.ll

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[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; RUN: llc -march=riscv32 --code-model=small < %s \
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; RUN: | FileCheck %s
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; RUN: llc -march=riscv32 --code-model=medium < %s \
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; RUN: | FileCheck %s
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; RUN: llc -march=riscv32 --code-model=small -relocation-model=pic < %s \
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; RUN: | FileCheck %s
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; RUN: llc -march=riscv32 --code-model=medium -relocation-model=pic < %s \
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; RUN: | FileCheck %s
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; RUN: llc -march=riscv64 --code-model=small < %s \
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; RUN: | FileCheck %s
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; RUN: llc -march=riscv64 --code-model=medium < %s \
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; RUN: | FileCheck %s
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; RUN: llc -march=riscv64 --code-model=small -relocation-model=pic < %s \
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; RUN: | FileCheck %s
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; RUN: llc -march=riscv64 --code-model=medium -relocation-model=pic < %s \
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; RUN: | FileCheck %s
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
declare void @throw_exception()
declare i32 @__gxx_personality_v0(...)
declare i8* @__cxa_begin_catch(i8*)
declare void @__cxa_end_catch()
; CHECK-LABEL: test1:
; CHECK: .cfi_startproc
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; PersonalityEncoding = DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4
; CHECK-NEXT: .cfi_personality 155, DW.ref.__gxx_personality_v0
; LSDAEncoding = DW_EH_PE_pcrel | DW_EH_PE_sdata4
; CHECK-NEXT: .cfi_lsda 27, .Lexception0
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
define void @test1() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
entry:
invoke void @throw_exception() to label %try.cont unwind label %lpad
lpad:
%0 = landingpad { i8*, i32 }
catch i8* null
%1 = extractvalue { i8*, i32 } %0, 0
%2 = tail call i8* @__cxa_begin_catch(i8* %1)
tail call void @__cxa_end_catch()
br label %try.cont
try.cont:
ret void
}
; CHECK-LABEL: GCC_except_table0:
; CHECK-NEXT: .Lexception0:
; CHECK-NEXT: .byte 255 # @LPStart Encoding = omit
[RISCV] Set correct encodings for DWARF exception handling This patch sets correct encodings for DWARF exception handling for RISC-V (other than call site encoding, which must be udata4 rather than uleb128 and is handled by D63415). This has the same intend as D63409, except this version matches GCC/binutils behaviour which uses the same encodings regardless of PIC/non-PIC and medlow/medany code model. llvm-svn: 366327
2019-07-17 21:54:38 +08:00
; TTypeEncoding = DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4
; CHECK-NEXT: .byte 155 # @TType Encoding = indirect pcrel sdata4
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; CHECK: .Lttbaseref0:
[RISCV][NFC] Remove outdated TODO from test/CodeGen/RISCV/dwarf-eh.ll llvm-svn: 366330
2019-07-17 22:04:48 +08:00
; CallSiteEncoding = dwarf::DW_EH_PE_udata4
[AsmPrinter] Make the encoding of call sites in .gcc_except_table configurable and use for RISC-V The original behavior was to always emit the offsets to each call site in the call site table as uleb128 values, however on some architectures (eg RISCV) these uleb128 offsets into the code cannot always be resolved until link time (because relaxation will invalidate any calculated offsets), and there are no appropriate relocations for uleb128 values. As a consequence it needs to be possible to specify an alternative. This also switches RISCV to use DW_EH_PE_udata4 for call side encodings in .gcc_except_table Differential Revision: https://reviews.llvm.org/D63415 Patch by Edward Jones. llvm-svn: 366329
2019-07-17 22:00:35 +08:00
; CHECK-NEXT: .byte 3 # Call site Encoding = udata4
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; CHECK-NEXT: .uleb128 .Lcst_end0-.Lcst_begin0
; CHECK-NEXT: cst_begin0:
[AsmPrinter] Make the encoding of call sites in .gcc_except_table configurable and use for RISC-V The original behavior was to always emit the offsets to each call site in the call site table as uleb128 values, however on some architectures (eg RISCV) these uleb128 offsets into the code cannot always be resolved until link time (because relaxation will invalidate any calculated offsets), and there are no appropriate relocations for uleb128 values. As a consequence it needs to be possible to specify an alternative. This also switches RISCV to use DW_EH_PE_udata4 for call side encodings in .gcc_except_table Differential Revision: https://reviews.llvm.org/D63415 Patch by Edward Jones. llvm-svn: 366329
2019-07-17 22:00:35 +08:00
; CHECK-NEXT: .word .Ltmp0-.Lfunc_begin0 # >> Call Site 1 <<
; CHECK-NEXT: .word .Ltmp1-.Ltmp0 # Call between .Ltmp0 and .Ltmp1
; CHECK-NEXT: .word .Ltmp2-.Lfunc_begin0 # jumps to .Ltmp2
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; CHECK-NEXT: .byte 1 # On action: 1
[AsmPrinter] Make the encoding of call sites in .gcc_except_table configurable and use for RISC-V The original behavior was to always emit the offsets to each call site in the call site table as uleb128 values, however on some architectures (eg RISCV) these uleb128 offsets into the code cannot always be resolved until link time (because relaxation will invalidate any calculated offsets), and there are no appropriate relocations for uleb128 values. As a consequence it needs to be possible to specify an alternative. This also switches RISCV to use DW_EH_PE_udata4 for call side encodings in .gcc_except_table Differential Revision: https://reviews.llvm.org/D63415 Patch by Edward Jones. llvm-svn: 366329
2019-07-17 22:00:35 +08:00
; CHECK-NEXT: .word .Ltmp1-.Lfunc_begin0 # >> Call Site 2 <<
; CHECK-NEXT: .word .Lfunc_end0-.Ltmp1 # Call between .Ltmp1 and .Lfunc_end0
; CHECK-NEXT: .word 0 # has no landing pad
[RISCV][NFC] Add tests that capture current encodings for DWARF EH Items which are known to be wrong/different vs GCC are marked as TODO and will be address in follow-up patches. llvm-svn: 366326
2019-07-17 21:48:49 +08:00
; CHECK-NEXT: .byte 0 # On action: cleanup