zig

commit 3a2913ce082faadf64d1086d9893f7e1575e0036 (tree)
parent 3991c4bf41d9aeb07d034f3f24c1bbb2b0c9f3a5
Author: Motiejus <motiejus@jakstys.lt>
Date:   Sat,  7 Mar 2026 07:26:38 +0000

sema: split zirTyOpCast into zirIntCast + zirTruncate

Add zirIntCast() and zirTruncate() as named entry points matching
src/Sema.zig's decomposition. Rename shared implementation to
analyzeTyOpCast(). Update dispatch and call sites.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

Diffstat:
M
stage0/sema.c
 | 
27
++++++++++++++++++---------

1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/stage0/sema.c b/stage0/sema.c
@@ -1573,10 +1573,9 @@ static AirInstRef zirBitcast(Sema* sema, SemaBlock* block, uint32_t inst) {
     return semaAddInst(block, AIR_INST_BITCAST, data);
 }
 
-// zirTyOpCast: generic handler for type-changing cast ZIR instructions
-// that produce a ty_op AIR instruction (intcast, truncate, etc.).
+// analyzeTyOpCast: shared worker for type-changing cast ZIR instructions.
 // Ported from src/Sema.zig zirIntCast / zirTruncate (simplified).
-static AirInstRef zirTyOpCast(
+static AirInstRef analyzeTyOpCast(
     Sema* sema, SemaBlock* block, uint32_t inst, AirInstTag air_tag) {
     uint32_t payload_index = sema->code.inst_datas[inst].pl_node.payload_index;
     ZirInstRef dest_ty_ref = sema->code.extra[payload_index];
@@ -1604,6 +1603,18 @@ static AirInstRef zirTyOpCast(
     return semaAddInst(block, air_tag, data);
 }
 
+// zirIntCast: handle int_cast ZIR instruction (@intCast).
+// Ported from src/Sema.zig zirIntCast.
+static AirInstRef zirIntCast(Sema* sema, SemaBlock* block, uint32_t inst) {
+    return analyzeTyOpCast(sema, block, inst, AIR_INST_INTCAST);
+}
+
+// zirTruncate: handle truncate ZIR instruction (@truncate).
+// Ported from src/Sema.zig zirTruncate.
+static AirInstRef zirTruncate(Sema* sema, SemaBlock* block, uint32_t inst) {
+    return analyzeTyOpCast(sema, block, inst, AIR_INST_TRUNC);
+}
+
 // floatBits: get the bit width of a float type from its IP index.
 static uint16_t floatBits(TypeIndex ty) {
     switch (ty) {
@@ -11353,29 +11364,27 @@ bool analyzeBodyInner(
 
         // @intCast.
         case ZIR_INST_INT_CAST:
-            instMapPut(&sema->inst_map, inst,
-                zirTyOpCast(sema, block, inst, AIR_INST_INTCAST));
+            instMapPut(&sema->inst_map, inst, zirIntCast(sema, block, inst));
             i++;
             continue;
 
         // @truncate.
         case ZIR_INST_TRUNCATE:
-            instMapPut(&sema->inst_map, inst,
-                zirTyOpCast(sema, block, inst, AIR_INST_TRUNC));
+            instMapPut(&sema->inst_map, inst, zirTruncate(sema, block, inst));
             i++;
             continue;
 
         // @intFromFloat.
         case ZIR_INST_INT_FROM_FLOAT:
             instMapPut(&sema->inst_map, inst,
-                zirTyOpCast(sema, block, inst, AIR_INST_INT_FROM_FLOAT));
+                analyzeTyOpCast(sema, block, inst, AIR_INST_INT_FROM_FLOAT));
             i++;
             continue;
 
         // @floatFromInt.
         case ZIR_INST_FLOAT_FROM_INT:
             instMapPut(&sema->inst_map, inst,
-                zirTyOpCast(sema, block, inst, AIR_INST_FLOAT_FROM_INT));
+                analyzeTyOpCast(sema, block, inst, AIR_INST_FLOAT_FROM_INT));
             i++;
             continue;