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x86_64: spill eflags when initializing bool vector

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Matthew Lugg 2025-10-31 13:01:42 +00:00
parent 20bd5e8018
commit 6576c3b898
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src/codegen/x86_64/CodeGen.zig
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@ -180028,6 +180028,8 @@ fn airAggregateInitBoolVec(self: *CodeGen, inst: Air.Inst.Index) !void {
{ {
const dst_lock = self.register_manager.lockRegAssumeUnused(dst_reg); const dst_lock = self.register_manager.lockRegAssumeUnused(dst_reg);
defer self.register_manager.unlockReg(dst_lock); defer self.register_manager.unlockReg(dst_lock);
try self.spillEflagsIfOccupied();
try self.asmRegisterRegister( try self.asmRegisterRegister(
.{ ._, .xor }, .{ ._, .xor },
registerAlias(dst_reg, @min(result_size, 4)), registerAlias(dst_reg, @min(result_size, 4)),