From 0f4830704171b734bb4a0235fc14809282457dc3 Mon Sep 17 00:00:00 2001
From: William Sengir <william@sengir.com>
Date: Sat, 19 Mar 2022 23:44:55 -0700
Subject: stage2: add AIR instruction `cmp_vector`

The existing `cmp_*` instructions get their result type from `lhs`, but
vector comparison will always return a vector of bools with only the
length derived from its operands. This necessitates the creation of a
new AIR instruction.
---
 src/codegen/c.zig | 2 ++
 1 file changed, 2 insertions(+)

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

diff --git a/src/codegen/c.zig b/src/codegen/c.zig
index 23ccdc007b..f5a1036479 100644
--- a/src/codegen/c.zig
+++ b/src/codegen/c.zig
@@ -1715,6 +1715,8 @@ fn genBody(f: *Function, body: []const Air.Inst.Index) error{ AnalysisFail, OutO
             .cmp_eq  => try airEquality(f, inst, "((", "=="),
             .cmp_neq => try airEquality(f, inst, "!((", "!="),
 
+            .cmp_vector => return f.fail("TODO: C backend: implement binary op for tag '{s}'", .{@tagName(Air.Inst.Tag.cmp_vector)}),
+
             // bool_and and bool_or are non-short-circuit operations
             .bool_and        => try airBinOp(f, inst, " & "),
             .bool_or         => try airBinOp(f, inst, " | "),
-- 
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