From: Cherry Mui <cherryyz@google.com>
Date: Fri, 30 Aug 2024 21:24:27 +0000 (-0400)
Subject: runtime: use 32-bit function index on Wasm
X-Git-Tag: go1.25rc3~5^2~17
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=9782dcfd16;p=gostls13.git

runtime: use 32-bit function index on Wasm

Following CL 567896, this is one more place we used only 16 bits
for the function index. Change it to load 32 bits.

For #64856.

Change-Id: I66a78c086e67165604053313751c097a70c50ba9
Reviewed-on: https://go-review.googlesource.com/c/go/+/609118
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
---

diff --git a/src/runtime/asm_wasm.s b/src/runtime/asm_wasm.s
index 751bf0aec7..85aa52e0f7 100644
--- a/src/runtime/asm_wasm.s
+++ b/src/runtime/asm_wasm.s
@@ -532,7 +532,7 @@ TEXT wasm_pc_f_loop(SB),NOSPLIT,$0
 			Get SP
 			I32Const $8
 			I32Sub
-			I32Load16U $2 // PC_F
+			I32Load $2 // PC_F
 
 			CallIndirect $0
 			Drop
@@ -568,7 +568,7 @@ outer:
 			Get SP
 			I32Const $8
 			I32Sub
-			I32Load16U $2 // PC_F
+			I32Load $2 // PC_F
 			Tee R2
 
 			Get R0