From e0781c0e40d6212ef6af5c936afb581562affb19 Mon Sep 17 00:00:00 2001
From: gingerBill <gingerBill@users.noreply.github.com>
Date: Tue, 12 May 2026 17:19:49 +0100
Subject: [PATCH] Just change the type when transposing #row_major to
 `#column_major` `matrix` types

---
 src/llvm_backend_expr.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/llvm_backend_expr.cpp b/src/llvm_backend_expr.cpp
index 882c25232..fd148e5c5 100644
--- a/src/llvm_backend_expr.cpp
+++ b/src/llvm_backend_expr.cpp
@@ -819,6 +819,13 @@ gb_internal lbValue lb_emit_matrix_transpose(lbProcedure *p, lbValue m, Type *ty
 
 	Type *rt = base_type(type);
 	if (rt->kind == Type_Matrix && rt->Matrix.is_row_major != mt->Matrix.is_row_major) {
+		if (rt->Matrix.row_count    == mt->Matrix.column_count &&
+		    rt->Matrix.column_count == mt->Matrix.row_count) {
+			lbValue res = m;
+			res.type = type;
+			return res;
+		}
+
 		GB_PANIC("TODO: transpose with changing layout");
 	}