Commit 55a260c968

Luuk de Gram <luuk@degram.dev>
2023-05-17 20:31:18
wasm: implement `shl` for big integers
master
1 parent b93fa98
Changed files (2)
src
arch
wasm
CodeGen.zig
test
behavior
int128.zig
src/arch/wasm/CodeGen.zig
@@ -2604,6 +2604,7 @@ fn binOpBigInt(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) Inner
     switch (op) {
         .mul => return func.callIntrinsic("__multi3", &.{ ty, ty }, ty, &.{ lhs, rhs }),
         .shr => return func.callIntrinsic("__lshrti3", &.{ ty, Type.i32 }, ty, &.{ lhs, rhs }),
+        .shl => return func.callIntrinsic("__ashlti3", &.{ ty, Type.i32 }, ty, &.{ lhs, rhs }),
         .xor => {
             const result = try func.allocStack(ty);
             try func.emitWValue(result);
test/behavior/int128.zig
@@ -87,7 +87,6 @@ test "truncate int128" {
 }
 
 test "shift int128" {
-    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO