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xermicus
b238913a7d
This PR fixes and enhances debug info generation: 1. Adds line information for each lowered YUL builtin and the `if` statement. 2. Fixes the debug info source path to match the YUL file of the contract dumped to the `--debug-output-dir`. This improves inspection of the generated code a lot. Excerpt from `llvm-objdump -Sl /tmp/dbg/contracts_EndpointV2.sol.EndpointV2.so`: ``` ; /tmp/dbg/contracts_EndpointV2.sol.EndpointV2.yul:203 ; let _1 := memoryguard(0x80) 13c3e: 3aa5b023 sd a0, 0x3a0(a1) 13c42: 38a5bc23 sd a0, 0x398(a1) 13c46: 38a5b823 sd a0, 0x390(a1) 13c4a: 08000513 li a0, 0x80 13c4e: 38a5b423 sd a0, 0x388(a1) ; /tmp/dbg/contracts_EndpointV2.sol.EndpointV2.yul:204 ; mstore(64, _1) 13c52: 3885b503 ld a0, 0x388(a1) 13c56: 3905b603 ld a2, 0x390(a1) 13c5a: 3985b683 ld a3, 0x398(a1) 13c5e: 3a05b703 ld a4, 0x3a0(a1) 13c62: 38e5b023 sd a4, 0x380(a1) 13c66: 36d5bc23 sd a3, 0x378(a1) 13c6a: 36c5b823 sd a2, 0x370(a1) 13c6e: 36a5b423 sd a0, 0x368(a1) 13c72: 04000513 li a0, 0x40 13c76: 65d9 lui a1, 0x16 13c78: a605859b addiw a1, a1, -0x5a0 13c7c: 95a6 add a1, a1, s1 13c7e: 00000097 auipc ra, 0x0 13c82: 000080e7 jalr ra <__runtime+0x1de> 0000000000013c86 <.Lpcrel_hi27>: ; /tmp/dbg/contracts_EndpointV2.sol.EndpointV2.yul:205 ; if iszero(lt(calldatasize(), 4)) 13c86: 00000517 auipc a0, 0x0 13c8a: 00053503 ld a0, 0x0(a0) 13c8e: 4108 lw a0, 0x0(a0) 13c90: 4591 li a1, 0x4 13c92: 06b56263 bltu a0, a1, 0x13cf6 <.Lpcrel_hi27+0x70> 13c96: a009 j 0x13c98 <.Lpcrel_hi27+0x12> ``` --------- Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>