From c08c0fc6eddf601785abfbc5e5a9ab5c89d7cfbf Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Sun, 24 Sep 2023 14:37:36 -0700
Subject: revert "compiler: packed structs cache bit offsets"

This is mostly a revert of a7088fd9a3edb037f0f51bb402a3c557334634f3.
Measurement revealed the commit actually regressed performance.
---
 src/codegen/c.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/codegen/c.zig')

diff --git a/src/codegen/c.zig b/src/codegen/c.zig
index ff472f7375..54e13db9a1 100644
--- a/src/codegen/c.zig
+++ b/src/codegen/c.zig
@@ -5429,7 +5429,7 @@ fn airStructFieldVal(f: *Function, inst: Air.Inst.Index) !CValue {
 
                 const bit_offset_ty = try mod.intType(.unsigned, Type.smallestUnsignedBits(int_info.bits - 1));
 
-                const bit_offset = struct_type.fieldBitOffset(ip, extra.field_index);
+                const bit_offset = mod.structPackedFieldBitOffset(struct_type, extra.field_index);
                 const bit_offset_val = try mod.intValue(bit_offset_ty, bit_offset);
 
                 const field_int_signedness = if (inst_ty.isAbiInt(mod))
-- 
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