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| author | Austin Clements <austin@google.com> | 2021-07-30 16:40:17 -0400 |
|---|---|---|
| committer | Austin Clements <austin@google.com> | 2021-07-30 21:51:49 +0000 |
| commit | e3e9f0bb2d6cc15b201fe2e0a0ac095d62cf4b8c (patch) | |
| tree | 1c5960b23d5810b75637928c33a6bd4c6357e8c1 /src/runtime/asm_wasm.s | |
| parent | 40e561d9337afbae221b34d6d0811761f32412f6 (diff) | |
| download | go-e3e9f0bb2d6cc15b201fe2e0a0ac095d62cf4b8c.tar.xz | |
[dev.typeparams] Revert "[dev.typeparams] runtime,cmd/compile,cmd/link: replace jmpdefer with a loop"
This reverts CL 227652.
I'm reverting CL 337651 and this builds on top of it.
Change-Id: I03ce363be44c2a3defff2e43e7b1aad83386820d
Reviewed-on: https://go-review.googlesource.com/c/go/+/338709
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src/runtime/asm_wasm.s')
| -rw-r--r-- | src/runtime/asm_wasm.s | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/runtime/asm_wasm.s b/src/runtime/asm_wasm.s index d885da6e70..53c271aa70 100644 --- a/src/runtime/asm_wasm.s +++ b/src/runtime/asm_wasm.s @@ -193,6 +193,35 @@ TEXT runtime·return0(SB), NOSPLIT, $0-0 MOVD $0, RET0 RET +TEXT runtime·jmpdefer(SB), NOSPLIT, $0-16 + MOVD fv+0(FP), CTXT + + Get CTXT + I64Eqz + If + CALLNORESUME runtime·sigpanic<ABIInternal>(SB) + End + + // caller sp after CALL + I64Load argp+8(FP) + I64Const $8 + I64Sub + I32WrapI64 + Set SP + + // decrease PC_B by 1 to CALL again + Get SP + I32Load16U (SP) + I32Const $1 + I32Sub + I32Store16 $0 + + // but first run the deferred function + Get CTXT + I32WrapI64 + I64Load $0 + JMP + TEXT runtime·asminit(SB), NOSPLIT, $0-0 // No per-thread init. RET |