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cranelift: refactor unwind logic to accommodate multiple backends (#2357)

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*    Make cranelift_codegen::isa::unwind::input public
*    Move UnwindCode's common offset field out of the structure
*    Make MachCompileResult::unwind_info more generic
*    Record initial stack pointer offset
This commit is contained in:
Yury Delendik
2020-11-05 16:57:40 -06:00
committed by GitHub
parent df59ffb1b6
commit f60c0f3ec3
15 changed files with 396 additions and 351 deletions
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9
cranelift/filetests/filetests/isa/x86/systemv_x64_unwind.clif
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@@ -37,8 +37,8 @@ block0:
; nextln: DW_CFA_advance_loc (3)
; nextln: DW_CFA_def_cfa_register (r6)
; nextln: DW_CFA_advance_loc (1)
; nextln: DW_CFA_def_cfa (r7, 8)
; nextln: DW_CFA_same_value (r6)
; nextln: DW_CFA_def_cfa (r7, 8)
; nextln: DW_CFA_nop
; check a function with medium-sized stack alloc
@@ -76,8 +76,8 @@ block0:
; nextln: DW_CFA_advance_loc (3)
; nextln: DW_CFA_def_cfa_register (r6)
; nextln: DW_CFA_advance_loc (21)
; nextln: DW_CFA_def_cfa (r7, 8)
; nextln: DW_CFA_same_value (r6)
; nextln: DW_CFA_def_cfa (r7, 8)
; nextln: DW_CFA_nop
; check a function with large-sized stack alloc
@@ -115,8 +115,8 @@ block0:
; nextln: DW_CFA_advance_loc (3)
; nextln: DW_CFA_def_cfa_register (r6)
; nextln: DW_CFA_advance_loc (21)
; nextln: DW_CFA_def_cfa (r7, 8)
; nextln: DW_CFA_same_value (r6)
; nextln: DW_CFA_def_cfa (r7, 8)
; nextln: DW_CFA_nop
; nextln:
@@ -200,7 +200,6 @@ block0(v0: i64, v1: i64):
; nextln: DW_CFA_advance_loc (1)
; nextln: DW_CFA_same_value (r3)
; nextln: DW_CFA_advance_loc (1)
; nextln: DW_CFA_def_cfa (r7, 8)
; nextln: DW_CFA_same_value (r6)
; nextln: DW_CFA_nop
; nextln: DW_CFA_def_cfa (r7, 8)
; nextln: DW_CFA_nop